131131750 has 32 divisors (see below), whose sum is σ = 246250368. Its totient is φ = 52288000.

The previous prime is 131131747. The next prime is 131131757. The reversal of 131131750 is 57131131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131131757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107142 + ... + 108358.

It is an arithmetic number, because the mean of its divisors is an integer number (7695324).

Almost surely, 2^131131750 is an apocalyptic number.

131131750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131131750 is a deficient number, since it is larger than the sum of its proper divisors (115118618).

131131750 is a wasteful number, since it uses less digits than its factorization.

131131750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665 (or 1655 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 131131750 is about 11451.2772213409. The cubic root of 131131750 is about 508.0455117635.

Adding to 131131750 its reverse (57131131), we get a palindrome (188262881).

The spelling of 131131750 in words is "one hundred thirty-one million, one hundred thirty-one thousand, seven hundred fifty".