12256137 has 8 divisors (see below), whose sum is σ = 18157280. Its totient is φ = 8170740.

The previous prime is 12256117. The next prime is 12256147. The reversal of 12256137 is 73165221.

It is a happy number.

It is not a de Polignac number, because 12256137 - 2¹¹ = 12254089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 453931 = 12256137 / (1 + 2 + 2 + 5 + 6 + 1 + 3 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12256137.

It is not an unprimeable number, because it can be changed into a prime (12256117) 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 in 7 ways as a sum of consecutive naturals, for example, 226939 + ... + 226992.

It is an arithmetic number, because the mean of its divisors is an integer number (2269660).

Almost surely, 2^12256137 is an apocalyptic number.

It is an amenable number.

12256137 is a deficient number, since it is larger than the sum of its proper divisors (5901143).

12256137 is an equidigital number, since it uses as much as digits as its factorization.

12256137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453940 (or 453934 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 12256137 is about 3500.8766045092. The cubic root of 12256137 is about 230.5603037511.

The spelling of 12256137 in words is "twelve million, two hundred fifty-six thousand, one hundred thirty-seven".