15243136 has 16 divisors (see below), whose sum is σ = 30367440. Its totient is φ = 7621504.

The previous prime is 15243131. The next prime is 15243139. The reversal of 15243136 is 63134251.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×15243136² = 464706390228992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15243136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15243131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59416 + ... + 59671.

It is an arithmetic number, because the mean of its divisors is an integer number (1897965).

Almost surely, 2^15243136 is an apocalyptic number.

15243136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15243136 is a deficient number, since it is larger than the sum of its proper divisors (15124304).

15243136 is an equidigital number, since it uses as much as digits as its factorization.

15243136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119101 (or 119089 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 15243136 is about 3904.2458938955. The cubic root of 15243136 is about 247.9465719105.

Adding to 15243136 its reverse (63134251), we get a palindrome (78377387).

The spelling of 15243136 in words is "fifteen million, two hundred forty-three thousand, one hundred thirty-six".