131078720 has 56 divisors (see below), whose sum is σ = 328574400. Its totient is φ = 49669632.

The previous prime is 131078693. The next prime is 131078729. The reversal of 131078720 is 27870131.

It is not an unprimeable number, because it can be changed into a prime (131078729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4700 + ... + 16859.

It is an arithmetic number, because the mean of its divisors is an integer number (5867400).

Almost surely, 2^131078720 is an apocalyptic number.

131078720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131078720 is an abundant number, since it is smaller than the sum of its proper divisors (197495680).

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

131078720 is a wasteful number, since it uses less digits than its factorization.

131078720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21595 (or 21585 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 131078720 is about 11448.9615249594. The cubic root of 131078720 is about 507.9770175810.

The spelling of 131078720 in words is "one hundred thirty-one million, seventy-eight thousand, seven hundred twenty".