72230015 has 16 divisors (see below), whose sum is σ = 101830176. Its totient is φ = 48489600.

The previous prime is 72230009. The next prime is 72230017. The reversal of 72230015 is 51003227.

It is not a de Polignac number, because 72230015 - 2⁴ = 72229999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72230017) 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, 49796 + ... + 51225.

It is an arithmetic number, because the mean of its divisors is an integer number (6364386).

Almost surely, 2^72230015 is an apocalyptic number.

72230015 is a deficient number, since it is larger than the sum of its proper divisors (29600161).

72230015 is a wasteful number, since it uses less digits than its factorization.

72230015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101050.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 72230015 is about 8498.8243304589. The cubic root of 72230015 is about 416.4593033960.

The spelling of 72230015 in words is "seventy-two million, two hundred thirty thousand, fifteen".