15072272 has 10 divisors (see below), whose sum is σ = 29202558. Its totient is φ = 7536128.

The previous prime is 15072271. The next prime is 15072287. The reversal of 15072272 is 27227051.

15072272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 14776336 + 295936 = 3844^2 + 544^2 .

It is not an unprimeable number, because it can be changed into a prime (15072271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470993 + ... + 471024.

Almost surely, 2^15072272 is an apocalyptic number.

It is an amenable number.

15072272 is a deficient number, since it is larger than the sum of its proper divisors (14130286).

15072272 is an equidigital number, since it uses as much as digits as its factorization.

15072272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942025 (or 942019 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 15072272 is about 3882.3024096533. The cubic root of 15072272 is about 247.0166576209.

The spelling of 15072272 in words is "fifteen million, seventy-two thousand, two hundred seventy-two".