131175620 has 48 divisors (see below), whose sum is σ = 294772800. Its totient is φ = 48885120.

The previous prime is 131175617. The next prime is 131175643. The reversal of 131175620 is 26571131.

It is a self number, because there is not a number n which added to its sum of digits gives 131175620.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20351 + ... + 26009.

It is an arithmetic number, because the mean of its divisors is an integer number (6141100).

Almost surely, 2^131175620 is an apocalyptic number.

131175620 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 131175620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147386400).

131175620 is an abundant number, since it is smaller than the sum of its proper divisors (163597180).

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

131175620 is a wasteful number, since it uses less digits than its factorization.

131175620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748 (or 5746 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 131175620 is about 11453.1925680135. The cubic root of 131175620 is about 508.1021608247.

The spelling of 131175620 in words is "one hundred thirty-one million, one hundred seventy-five thousand, six hundred twenty".