72453136 has 40 divisors (see below), whose sum is σ = 165971520. Its totient is φ = 29979264.

The previous prime is 72453131. The next prime is 72453211. The reversal of 72453136 is 63135427.

It is a junction number, because it is equal to n+sod(n) for n = 72453098 and 72453107.

It is not an unprimeable number, because it can be changed into a prime (72453131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7906 + ... + 14401.

It is an arithmetic number, because the mean of its divisors is an integer number (4149288).

Almost surely, 2^72453136 is an apocalyptic number.

It is an amenable number.

72453136 is an abundant number, since it is smaller than the sum of its proper divisors (93518384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72453136 is a wasteful number, since it uses less digits than its factorization.

72453136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22351 (or 22345 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 72453136 is about 8511.9407892677. The cubic root of 72453136 is about 416.8876816428.

The spelling of 72453136 in words is "seventy-two million, four hundred fifty-three thousand, one hundred thirty-six".