131207760 has 60 divisors (see below), whose sum is σ = 440641812. Its totient is φ = 34988544.

The previous prime is 131207759. The next prime is 131207789. The reversal of 131207760 is 67702131.

It can be written as a sum of positive squares in 2 ways, for example, as 74235456 + 56972304 = 8616^2 + 7548^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90397 + ... + 91836.

Almost surely, 2^131207760 is an apocalyptic number.

131207760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131207760 is an abundant number, since it is smaller than the sum of its proper divisors (309434052).

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

131207760 is a wasteful number, since it uses less digits than its factorization.

131207760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182252 (or 182243 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 131207760 is about 11454.5955843059. The cubic root of 131207760 is about 508.1436549934.

Adding to 131207760 its reverse (67702131), we get a palindrome (198909891).

The spelling of 131207760 in words is "one hundred thirty-one million, two hundred seven thousand, seven hundred sixty".