12154164631 has 8 divisors (see below), whose sum is σ = 13893972480. Its totient is φ = 10415231448.

The previous prime is 12154164559. The next prime is 12154164647. The reversal of 12154164631 is 13646145121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12154164631 - 2¹¹ = 12154162583 is a prime.

It is a super-2 number, since 2×12154164631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12154174631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188611 + ... + 244708.

It is an arithmetic number, because the mean of its divisors is an integer number (1736746560).

Almost surely, 2^12154164631 is an apocalyptic number.

12154164631 is a deficient number, since it is larger than the sum of its proper divisors (1739807849).

12154164631 is an equidigital number, since it uses as much as digits as its factorization.

12154164631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437333.

The product of its digits is 17280, while the sum is 34.

The spelling of 12154164631 in words is "twelve billion, one hundred fifty-four million, one hundred sixty-four thousand, six hundred thirty-one".