12538107 has 6 divisors (see below), whose sum is σ = 18110612. Its totient is φ = 8358732.

The previous prime is 12538073. The next prime is 12538109. The reversal of 12538107 is 70183521.

It is not a de Polignac number, because 12538107 - 2²⁰ = 11489531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12538109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 696553 + ... + 696570.

Almost surely, 2^12538107 is an apocalyptic number.

12538107 is a deficient number, since it is larger than the sum of its proper divisors (5572505).

12538107 is a wasteful number, since it uses less digits than its factorization.

12538107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393129 (or 1393126 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 12538107 is about 3540.9189485217. The cubic root of 12538107 is about 232.3150384665.

The spelling of 12538107 in words is "twelve million, five hundred thirty-eight thousand, one hundred seven".