131697360 has 160 divisors (see below), whose sum is σ = 477648000. Its totient is φ = 33260544.

The previous prime is 131697359. The next prime is 131697373. The reversal of 131697360 is 63796131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39436 + ... + 42644.

It is an arithmetic number, because the mean of its divisors is an integer number (2985300).

Almost surely, 2^131697360 is an apocalyptic number.

131697360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131697360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238824000).

131697360 is an abundant number, since it is smaller than the sum of its proper divisors (345950640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131697360 is a wasteful number, since it uses less digits than its factorization.

131697360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250 (or 3238 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 131697360 is about 11475.9470197453. The cubic root of 131697360 is about 508.7749142135.

The spelling of 131697360 in words is "one hundred thirty-one million, six hundred ninety-seven thousand, three hundred sixty".