131507650 has 12 divisors (see below), whose sum is σ = 244604322. Its totient is φ = 52603040.

The previous prime is 131507641. The next prime is 131507659. The reversal of 131507650 is 56705131.

It is an interprime number because it is at equal distance from previous prime (131507641) and next prime (131507659).

It can be written as a sum of positive squares in 3 ways, for example, as 63824121 + 67683529 = 7989^2 + 8227^2 .

It is not an unprimeable number, because it can be changed into a prime (131507659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1315027 + ... + 1315126.

Almost surely, 2^131507650 is an apocalyptic number.

131507650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131507650 is a deficient number, since it is larger than the sum of its proper divisors (113096672).

131507650 is a wasteful number, since it uses less digits than its factorization.

131507650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630165 (or 2630160 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 131507650 is about 11467.6784921797. The cubic root of 131507650 is about 508.5305001225.

The spelling of 131507650 in words is "one hundred thirty-one million, five hundred seven thousand, six hundred fifty".