12168631 has 4 divisors (see below), whose sum is σ = 12276432. Its totient is φ = 12060832.

The previous prime is 12168577. The next prime is 12168643. The reversal of 12168631 is 13686121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12168631 - 2⁷ = 12168503 is a prime.

It is a super-2 number, since 2×12168631² = 296151160828322, which contains 22 as substring.

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 12168631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12168031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53731 + ... + 53956.

It is an arithmetic number, because the mean of its divisors is an integer number (3069108).

Almost surely, 2^12168631 is an apocalyptic number.

12168631 is a deficient number, since it is larger than the sum of its proper divisors (107801).

12168631 is a wasteful number, since it uses less digits than its factorization.

12168631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107800.

The product of its digits is 1728, while the sum is 28.

The square root of 12168631 is about 3488.3564898101. The cubic root of 12168631 is about 230.0102767935.

The spelling of 12168631 in words is "twelve million, one hundred sixty-eight thousand, six hundred thirty-one".