12065631 has 16 divisors (see below), whose sum is σ = 17107200. Its totient is φ = 7538048.

The previous prime is 12065629. The next prime is 12065633. The reversal of 12065631 is 13656021.

It is an interprime number because it is at equal distance from previous prime (12065629) and next prime (12065633).

It is a cyclic number.

It is not a de Polignac number, because 12065631 - 2¹ = 12065629 is a prime.

It is a super-2 number, since 2×12065631² = 291158902856322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12065633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17980 + ... + 18638.

It is an arithmetic number, because the mean of its divisors is an integer number (1069200).

Almost surely, 2^12065631 is an apocalyptic number.

12065631 is a deficient number, since it is larger than the sum of its proper divisors (5041569).

12065631 is a wasteful number, since it uses less digits than its factorization.

12065631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 12065631 is about 3473.5617167398. The cubic root of 12065631 is about 229.3594717837.

The spelling of 12065631 in words is "twelve million, sixty-five thousand, six hundred thirty-one".