31545154142 has 16 divisors (see below), whose sum is σ = 47645191440. Its totient is φ = 15663717888.

The previous prime is 31545154133. The next prime is 31545154163. The reversal of 31545154142 is 24145154513.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142334 + ... + 288702.

It is an arithmetic number, because the mean of its divisors is an integer number (2977824465).

Almost surely, 2^31545154142 is an apocalyptic number.

31545154142 is a deficient number, since it is larger than the sum of its proper divisors (16100037298).

31545154142 is a wasteful number, since it uses less digits than its factorization.

31545154142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147115.

The product of its digits is 48000, while the sum is 35.

The spelling of 31545154142 in words is "thirty-one billion, five hundred forty-five million, one hundred fifty-four thousand, one hundred forty-two".