131109975 has 48 divisors (see below), whose sum is σ = 253555200. Its totient is φ = 66238560.

The previous prime is 131109961. The next prime is 131109983. The reversal of 131109975 is 579901131.

It is not a de Polignac number, because 131109975 - 2¹⁶ = 131044439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7714 + ... + 17936.

It is an arithmetic number, because the mean of its divisors is an integer number (5282400).

Almost surely, 2^131109975 is an apocalyptic number.

131109975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131109975 is a deficient number, since it is larger than the sum of its proper divisors (122445225).

131109975 is a wasteful number, since it uses less digits than its factorization.

131109975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10261 (or 10250 counting only the distinct ones).

The product of its (nonzero) digits is 8505, while the sum is 36.

The square root of 131109975 is about 11450.3264145613. The cubic root of 131109975 is about 508.0173891479.

The spelling of 131109975 in words is "one hundred thirty-one million, one hundred nine thousand, nine hundred seventy-five".