131612124 has 24 divisors (see below), whose sum is σ = 350965888. Its totient is φ = 37603440.

The previous prime is 131612111. The next prime is 131612137. The reversal of 131612124 is 421216131.

It is an interprime number because it is at equal distance from previous prime (131612111) and next prime (131612137).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 131612124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783322 + ... + 783489.

Almost surely, 2^131612124 is an apocalyptic number.

131612124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131612124 is an abundant number, since it is smaller than the sum of its proper divisors (219353764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131612124 is a wasteful number, since it uses less digits than its factorization.

131612124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566825 (or 1566823 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 131612124 is about 11472.2327382249. The cubic root of 131612124 is about 508.6651289260.

Adding to 131612124 its reverse (421216131), we get a palindrome (552828255).

The spelling of 131612124 in words is "one hundred thirty-one million, six hundred twelve thousand, one hundred twenty-four".