131749650 has 36 divisors (see below), whose sum is σ = 353968602. Its totient is φ = 35133120.

The previous prime is 131749633. The next prime is 131749661. The reversal of 131749650 is 56947131.

It can be written as a sum of positive squares in 3 ways, for example, as 117483921 + 14265729 = 10839^2 + 3777^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 145939 + ... + 146838.

Almost surely, 2^131749650 is an apocalyptic number.

131749650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131749650 is an abundant number, since it is smaller than the sum of its proper divisors (222218952).

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

131749650 is a wasteful number, since it uses less digits than its factorization.

131749650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292795 (or 292787 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 131749650 is about 11478.2250369994. The cubic root of 131749650 is about 508.8422411011.

The spelling of 131749650 in words is "one hundred thirty-one million, seven hundred forty-nine thousand, six hundred fifty".