131870416 has 10 divisors (see below), whose sum is σ = 255498962. Its totient is φ = 65935200.

The previous prime is 131870371. The next prime is 131870419. The reversal of 131870416 is 614078131.

It can be written as a sum of positive squares in only one way, i.e., 75620416 + 56250000 = 8696^2 + 7500^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131870419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4120935 + ... + 4120966.

Almost surely, 2^131870416 is an apocalyptic number.

131870416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131870416 is a deficient number, since it is larger than the sum of its proper divisors (123628546).

131870416 is an equidigital number, since it uses as much as digits as its factorization.

131870416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8241909 (or 8241903 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 131870416 is about 11483.4844886036. The cubic root of 131870416 is about 508.9976673855.

The spelling of 131870416 in words is "one hundred thirty-one million, eight hundred seventy thousand, four hundred sixteen".