154534952531 has 4 divisors (see below), whose sum is σ = 154626232992. Its totient is φ = 154443672072.

The previous prime is 154534952519. The next prime is 154534952557. The reversal of 154534952531 is 135259435451.

154534952531 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.

It is a cyclic number.

It is not a de Polignac number, because 154534952531 - 2²² = 154530758227 is a prime.

It is a super-2 number, since 2×154534952531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154534951531) 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, 45637691 + ... + 45641076.

It is an arithmetic number, because the mean of its divisors is an integer number (38656558248).

Almost surely, 2^154534952531 is an apocalyptic number.

154534952531 is a deficient number, since it is larger than the sum of its proper divisors (91280461).

154534952531 is an equidigital number, since it uses as much as digits as its factorization.

154534952531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91280460.

The product of its digits is 1620000, while the sum is 47.

The spelling of 154534952531 in words is "one hundred fifty-four billion, five hundred thirty-four million, nine hundred fifty-two thousand, five hundred thirty-one".