131706375 has 16 divisors (see below), whose sum is σ = 219160032. Its totient is φ = 70243200.

The previous prime is 131706353. The next prime is 131706397. The reversal of 131706375 is 573607131.

It is an interprime number because it is at equal distance from previous prime (131706353) and next prime (131706397).

It is not a de Polignac number, because 131706375 - 2⁵ = 131706343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175234 + ... + 175983.

It is an arithmetic number, because the mean of its divisors is an integer number (13697502).

Almost surely, 2^131706375 is an apocalyptic number.

131706375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131706375 is a deficient number, since it is larger than the sum of its proper divisors (87453657).

131706375 is an equidigital number, since it uses as much as digits as its factorization.

131706375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351235 (or 351225 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 131706375 is about 11476.3397910658. The cubic root of 131706375 is about 508.7865229028.

The spelling of 131706375 in words is "one hundred thirty-one million, seven hundred six thousand, three hundred seventy-five".