131757650 has 24 divisors (see below), whose sum is σ = 259486740. Its totient is φ = 49602560.

The previous prime is 131757601. The next prime is 131757653. The reversal of 131757650 is 56757131.

It can be written as a sum of positive squares in 6 ways, for example, as 83302129 + 48455521 = 9127^2 + 6961^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 131757650.

It is not an unprimeable number, because it can be changed into a prime (131757653) 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, 76655 + ... + 78354.

Almost surely, 2^131757650 is an apocalyptic number.

131757650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131757650 is a deficient number, since it is larger than the sum of its proper divisors (127729090).

131757650 is a wasteful number, since it uses less digits than its factorization.

131757650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155038 (or 155033 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 35.

The square root of 131757650 is about 11478.5735176458. The cubic root of 131757650 is about 508.8525400672.

The spelling of 131757650 in words is "one hundred thirty-one million, seven hundred fifty-seven thousand, six hundred fifty".