131797830 has 32 divisors (see below), whose sum is σ = 316802304. Its totient is φ = 35091936.

The previous prime is 131797817. The next prime is 131797871. The reversal of 131797830 is 38797131.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 15.

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, 18789 + ... + 24831.

It is an arithmetic number, because the mean of its divisors is an integer number (9900072).

Almost surely, 2^131797830 is an apocalyptic number.

131797830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131797830 is an abundant number, since it is smaller than the sum of its proper divisors (185004474).

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

131797830 is a wasteful number, since it uses less digits than its factorization.

131797830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6780.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 131797830 is about 11480.3236017109. The cubic root of 131797830 is about 508.9042603205.

The spelling of 131797830 in words is "one hundred thirty-one million, seven hundred ninety-seven thousand, eight hundred thirty".