15072254 has 4 divisors (see below), whose sum is σ = 22608384. Its totient is φ = 7536126.

The previous prime is 15072247. The next prime is 15072259. The reversal of 15072254 is 45227051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45227051 = 1483 ⋅30497.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15072259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3768062 + ... + 3768065.

It is an arithmetic number, because the mean of its divisors is an integer number (5652096).

Almost surely, 2^15072254 is an apocalyptic number.

15072254 is a deficient number, since it is larger than the sum of its proper divisors (7536130).

15072254 is an equidigital number, since it uses as much as digits as its factorization.

15072254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7536129.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 15072254 is about 3882.3000914406. The cubic root of 15072254 is about 247.0165592880.

The spelling of 15072254 in words is "fifteen million, seventy-two thousand, two hundred fifty-four".