15245039 has 16 divisors (see below), whose sum is σ = 16912800. Its totient is φ = 13724032.

The previous prime is 15245033. The next prime is 15245051. The reversal of 15245039 is 93054251.

It is not a de Polignac number, because 15245039 - 2¹² = 15240943 is a prime.

It is a super-2 number, since 2×15245039² = 464822428223042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15245033) 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, 142424 + ... + 142530.

It is an arithmetic number, because the mean of its divisors is an integer number (1057050).

Almost surely, 2^15245039 is an apocalyptic number.

15245039 is a deficient number, since it is larger than the sum of its proper divisors (1667761).

15245039 is an equidigital number, since it uses as much as digits as its factorization.

15245039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 15245039 is about 3904.4895953248. The cubic root of 15245039 is about 247.9568896188.

The spelling of 15245039 in words is "fifteen million, two hundred forty-five thousand, thirty-nine".