154942561453 has 4 divisors (see below), whose sum is σ = 154943760448. Its totient is φ = 154941362460.

The previous prime is 154942561447. The next prime is 154942561471. The reversal of 154942561453 is 354165249451.

154942561453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 154942561453 - 2¹³ = 154942553261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154942561397 and 154942561406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154949561453) 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 3 ways as a sum of consecutive naturals, for example, 378501 + ... + 673162.

It is an arithmetic number, because the mean of its divisors is an integer number (38735940112).

Almost surely, 2^154942561453 is an apocalyptic number.

It is an amenable number.

154942561453 is a deficient number, since it is larger than the sum of its proper divisors (1198995).

154942561453 is a wasteful number, since it uses less digits than its factorization.

154942561453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198994.

The product of its digits is 2592000, while the sum is 49.

The spelling of 154942561453 in words is "one hundred fifty-four billion, nine hundred forty-two million, five hundred sixty-one thousand, four hundred fifty-three".