72272315 has 8 divisors (see below), whose sum is σ = 89524608. Its totient is φ = 55952640.

The previous prime is 72272311. The next prime is 72272339. The reversal of 72272315 is 51327227.

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

It is not a de Polignac number, because 72272315 - 2² = 72272311 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (72272311) 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, 232982 + ... + 233291.

It is an arithmetic number, because the mean of its divisors is an integer number (11190576).

Almost surely, 2^72272315 is an apocalyptic number.

72272315 is a deficient number, since it is larger than the sum of its proper divisors (17252293).

72272315 is a wasteful number, since it uses less digits than its factorization.

72272315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466309.

The product of its digits is 5880, while the sum is 29.

The square root of 72272315 is about 8501.3125457190. The cubic root of 72272315 is about 416.5405844295.

It can be divided in two parts, 722 and 72315, that added together give a palindrome (73037).

The spelling of 72272315 in words is "seventy-two million, two hundred seventy-two thousand, three hundred fifteen".