154929889031 has 4 divisors (see below), whose sum is σ = 157052216352. Its totient is φ = 152807561712.

The previous prime is 154929889007. The next prime is 154929889097. The reversal of 154929889031 is 130988929451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154929889031 is a prime.

It is a super-2 number, since 2×154929889031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154929885031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061163551 + ... + 1061163696.

It is an arithmetic number, because the mean of its divisors is an integer number (39263054088).

Almost surely, 2^154929889031 is an apocalyptic number.

154929889031 is a deficient number, since it is larger than the sum of its proper divisors (2122327321).

154929889031 is an equidigital number, since it uses as much as digits as its factorization.

154929889031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122327320.

The product of its (nonzero) digits is 5598720, while the sum is 59.

The spelling of 154929889031 in words is "one hundred fifty-four billion, nine hundred twenty-nine million, eight hundred eighty-nine thousand, thirty-one".