131776812 has 36 divisors (see below), whose sum is σ = 344591520. Its totient is φ = 42410592.

The previous prime is 131776807. The next prime is 131776817. The reversal of 131776812 is 218677131.

131776812 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (131776807) and next prime (131776817).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (131776817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62068 + ... + 64155.

Almost surely, 2^131776812 is an apocalyptic number.

131776812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131776812 is an abundant number, since it is smaller than the sum of its proper divisors (212814708).

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

131776812 is a wasteful number, since it uses less digits than its factorization.

131776812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126262 (or 126257 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 131776812 is about 11479.4081728981. The cubic root of 131776812 is about 508.8772069707.

It can be divided in two parts, 13177681 and 2, that multiplied together give a palindrome (26355362).

The spelling of 131776812 in words is "one hundred thirty-one million, seven hundred seventy-six thousand, eight hundred twelve".