131175045 has 48 divisors (see below), whose sum is σ = 238230720. Its totient is φ = 69237504.

The previous prime is 131175019. The next prime is 131175061. The reversal of 131175045 is 540571131.

It is not a de Polignac number, because 131175045 - 2⁵ = 131175013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129501 + ... + 130509.

It is an arithmetic number, because the mean of its divisors is an integer number (4963140).

Almost surely, 2^131175045 is an apocalyptic number.

131175045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131175045 is a deficient number, since it is larger than the sum of its proper divisors (107055675).

131175045 is a wasteful number, since it uses less digits than its factorization.

131175045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 131175045 is about 11453.1674658149. The cubic root of 131175045 is about 508.1014184124.

The spelling of 131175045 in words is "one hundred thirty-one million, one hundred seventy-five thousand, forty-five".