12238137 has 12 divisors (see below), whose sum is σ = 17744740. Its totient is φ = 8127648.

The previous prime is 12238133. The next prime is 12238141. The reversal of 12238137 is 73183221.

It is an interprime number because it is at equal distance from previous prime (12238133) and next prime (12238141).

It can be written as a sum of positive squares in 2 ways, for example, as 8173881 + 4064256 = 2859^2 + 2016^2 .

It is not a de Polignac number, because 12238137 - 2² = 12238133 is a prime.

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 12238137.

It is not an unprimeable number, because it can be changed into a prime (12238133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39 + ... + 4947.

Almost surely, 2^12238137 is an apocalyptic number.

It is an amenable number.

12238137 is a deficient number, since it is larger than the sum of its proper divisors (5506603).

12238137 is a wasteful number, since it uses less digits than its factorization.

12238137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5192 (or 5189 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 12238137 is about 3498.3048752217. The cubic root of 12238137 is about 230.4473775002.

The spelling of 12238137 in words is "twelve million, two hundred thirty-eight thousand, one hundred thirty-seven".