72513465 has 8 divisors (see below), whose sum is σ = 116021568. Its totient is φ = 38673840.

The previous prime is 72513439. The next prime is 72513473. The reversal of 72513465 is 56431527.

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

It is not a de Polignac number, because 72513465 - 2⁶ = 72513401 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 2417101 + ... + 2417130.

It is an arithmetic number, because the mean of its divisors is an integer number (14502696).

Almost surely, 2^72513465 is an apocalyptic number.

It is an amenable number.

72513465 is a deficient number, since it is larger than the sum of its proper divisors (43508103).

72513465 is a wasteful number, since it uses less digits than its factorization.

72513465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834239.

The product of its digits is 25200, while the sum is 33.

The square root of 72513465 is about 8515.4838382795. The cubic root of 72513465 is about 417.0033584373.

The spelling of 72513465 in words is "seventy-two million, five hundred thirteen thousand, four hundred sixty-five".