72036545 has 16 divisors (see below), whose sum is σ = 100047360. Its totient is φ = 48769344.

The previous prime is 72036541. The next prime is 72036563. The reversal of 72036545 is 54563027.

It is a cyclic number.

It is not a de Polignac number, because 72036545 - 2² = 72036541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72036541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10262 + ... + 15791.

It is an arithmetic number, because the mean of its divisors is an integer number (6252960).

Almost surely, 2^72036545 is an apocalyptic number.

It is an amenable number.

72036545 is a deficient number, since it is larger than the sum of its proper divisors (28010815).

72036545 is a wasteful number, since it uses less digits than its factorization.

72036545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26144.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 72036545 is about 8487.4345358300. The cubic root of 72036545 is about 416.0871385045.

The spelling of 72036545 in words is "seventy-two million, thirty-six thousand, five hundred forty-five".