131537750 has 32 divisors (see below), whose sum is σ = 249945696. Its totient is φ = 51823200.

The previous prime is 131537719. The next prime is 131537753. The reversal of 131537750 is 57735131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131537753) 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 15 ways as a sum of consecutive naturals, for example, 12824 + ... + 20676.

It is an arithmetic number, because the mean of its divisors is an integer number (7810803).

Almost surely, 2^131537750 is an apocalyptic number.

131537750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131537750 is a deficient number, since it is larger than the sum of its proper divisors (118407946).

131537750 is an equidigital number, since it uses as much as digits as its factorization.

131537750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7937 (or 7927 counting only the distinct ones).

The product of its (nonzero) digits is 11025, while the sum is 32.

The square root of 131537750 is about 11468.9908012867. The cubic root of 131537750 is about 508.5692953316.

The spelling of 131537750 in words is "one hundred thirty-one million, five hundred thirty-seven thousand, seven hundred fifty".