72413545 has 8 divisors (see below), whose sum is σ = 90674496. Its totient is φ = 55412016.

The previous prime is 72413543. The next prime is 72413563. The reversal of 72413545 is 54531427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72413545 - 2¹ = 72413543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72413543) 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, 314727 + ... + 314956.

It is an arithmetic number, because the mean of its divisors is an integer number (11334312).

Almost surely, 2^72413545 is an apocalyptic number.

It is an amenable number.

72413545 is a deficient number, since it is larger than the sum of its proper divisors (18260951).

72413545 is a wasteful number, since it uses less digits than its factorization.

72413545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629711.

The product of its digits is 16800, while the sum is 31.

The square root of 72413545 is about 8509.6148561495. The cubic root of 72413545 is about 416.8117336653.

The spelling of 72413545 in words is "seventy-two million, four hundred thirteen thousand, five hundred forty-five".