154142136346554 has 96 divisors (see below), whose sum is σ = 349511372580240. Its totient is φ = 49043368498176.

The previous prime is 154142136346547. The next prime is 154142136346559. The reversal of 154142136346554 is 455643631241451.

It is a happy number.

154142136346554 is a `hidden beast` number, since 1 + 5 + 4 + 1 + 4 + 21 + 3 + 63 + 4 + 6 + 554 = 666.

154142136346554 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 62710196726529 + 91431939620025 = 7918977^2 + 9562005^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 154142136346554.

It is not an unprimeable number, because it can be changed into a prime (154142136346559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 324822184 + ... + 325296380.

Almost surely, 2^{154142136346554} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154142136346554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174755686290120).

154142136346554 is an abundant number, since it is smaller than the sum of its proper divisors (195369236233686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154142136346554 is a wasteful number, since it uses less digits than its factorization.

154142136346554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483504 (or 483501 counting only the distinct ones).

The product of its digits is 20736000, while the sum is 54.

The spelling of 154142136346554 in words is "one hundred fifty-four trillion, one hundred forty-two billion, one hundred thirty-six million, three hundred forty-six thousand, five hundred fifty-four".