12013137 has 16 divisors (see below), whose sum is σ = 17850880. Its totient is φ = 7984656.

The previous prime is 12013117. The next prime is 12013189. The reversal of 12013137 is 73131021.

It is not a de Polignac number, because 12013137 - 2⁷ = 12013009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12013117) 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 15 ways as a sum of consecutive naturals, for example, 16023 + ... + 16755.

It is an arithmetic number, because the mean of its divisors is an integer number (1115680).

Almost surely, 2^12013137 is an apocalyptic number.

It is an amenable number.

12013137 is a deficient number, since it is larger than the sum of its proper divisors (5837743).

12013137 is an equidigital number, since it uses as much as digits as its factorization.

12013137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 12013137 is about 3465.9972590872. The cubic root of 12013137 is about 229.0263631033.

Adding to 12013137 its reverse (73131021), we get a palindrome (85144158).

The spelling of 12013137 in words is "twelve million, thirteen thousand, one hundred thirty-seven".