145110972172 has 18 divisors (see below), whose sum is σ = 268013134788. Its totient is φ = 68736775608.

The previous prime is 145110972151. The next prime is 145110972173. The reversal of 145110972172 is 271279011541.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (145110972173) 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 5 ways as a sum of consecutive naturals, for example, 50244738 + ... + 50247625.

Almost surely, 2^145110972172 is an apocalyptic number.

It is an amenable number.

145110972172 is a deficient number, since it is larger than the sum of its proper divisors (122902162616).

145110972172 is a wasteful number, since it uses less digits than its factorization.

145110972172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100492405 (or 100492384 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 40.

The spelling of 145110972172 in words is "one hundred forty-five billion, one hundred ten million, nine hundred seventy-two thousand, one hundred seventy-two".