15136812 has 18 divisors (see below), whose sum is σ = 38262588. Its totient is φ = 5045592.

The previous prime is 15136799. The next prime is 15136819. The reversal of 15136812 is 21863151.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (15136819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210198 + ... + 210269.

Almost surely, 2^15136812 is an apocalyptic number.

15136812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15136812 is an abundant number, since it is smaller than the sum of its proper divisors (23125776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15136812 is a wasteful number, since it uses less digits than its factorization.

15136812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420477 (or 420472 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 15136812 is about 3890.6056083854. The cubic root of 15136812 is about 247.3687335760.

Adding to 15136812 its reverse (21863151), we get a palindrome (36999963).

It can be divided in two parts, 151 and 36812, that added together give a palindrome (36963).

The spelling of 15136812 in words is "fifteen million, one hundred thirty-six thousand, eight hundred twelve".