131095020 has 96 divisors (see below), whose sum is σ = 421037568. Its totient is φ = 29855232.

The previous prime is 131094983. The next prime is 131095021. The reversal of 131095020 is 20590131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (131095021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191599 + ... + 192281.

It is an arithmetic number, because the mean of its divisors is an integer number (4385808).

Almost surely, 2^131095020 is an apocalyptic number.

131095020 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 131095020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210518784).

131095020 is an abundant number, since it is smaller than the sum of its proper divisors (289942548).

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

131095020 is a wasteful number, since it uses less digits than its factorization.

131095020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 131095020 is about 11449.6733577862. The cubic root of 131095020 is about 507.9980728222.

The spelling of 131095020 in words is "one hundred thirty-one million, ninety-five thousand, twenty".