154542402126 has 144 divisors (see below), whose sum is σ = 391689043200. Its totient is φ = 43908824736.

The previous prime is 154542402109. The next prime is 154542402143. The reversal of 154542402126 is 621204245451.

154542402126 is a `hidden beast` number, since 1 + 54 + 542 + 40 + 2 + 1 + 26 = 666.

154542402126 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (154542402109) and next prime (154542402143).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 214940395 + ... + 214941113.

It is an arithmetic number, because the mean of its divisors is an integer number (2720062800).

Almost surely, 2^154542402126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154542402126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195844521600).

154542402126 is an abundant number, since it is smaller than the sum of its proper divisors (237146641074).

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

154542402126 is a wasteful number, since it uses less digits than its factorization.

154542402126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763 (or 1753 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 154542402126 its reverse (621204245451), we get a palindrome (775746647577).

The spelling of 154542402126 in words is "one hundred fifty-four billion, five hundred forty-two million, four hundred two thousand, one hundred twenty-six".