131487700 has 36 divisors (see below), whose sum is σ = 290723580. Its totient is φ = 51600640.

The previous prime is 131487691. The next prime is 131487703. The reversal of 131487700 is 7784131.

It can be written as a sum of positive squares in 6 ways, for example, as 4519876 + 126967824 = 2126^2 + 11268^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131487703) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7105 + ... + 17704.

It is an arithmetic number, because the mean of its divisors is an integer number (8075655).

Almost surely, 2^131487700 is an apocalyptic number.

131487700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131487700 is an abundant number, since it is smaller than the sum of its proper divisors (159235880).

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

131487700 is a wasteful number, since it uses less digits than its factorization.

131487700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24876 (or 24869 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 131487700 is about 11466.8086231523. The cubic root of 131487700 is about 508.5047837566.

The spelling of 131487700 in words is "one hundred thirty-one million, four hundred eighty-seven thousand, seven hundred".