15225074 has 4 divisors (see below), whose sum is σ = 22837614. Its totient is φ = 7612536.

The previous prime is 15225031. The next prime is 15225079. The reversal of 15225074 is 47052251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12996025 + 2229049 = 3605^2 + 1493^2 .

It is not an unprimeable number, because it can be changed into a prime (15225079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3806267 + ... + 3806270.

Almost surely, 2^15225074 is an apocalyptic number.

15225074 is a deficient number, since it is larger than the sum of its proper divisors (7612540).

15225074 is an equidigital number, since it uses as much as digits as its factorization.

15225074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7612539.

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

The square root of 15225074 is about 3901.9320855187. The cubic root of 15225074 is about 247.8486003599.

The spelling of 15225074 in words is "fifteen million, two hundred twenty-five thousand, seventy-four".