131044386 has 64 divisors (see below), whose sum is σ = 300672000. Its totient is φ = 37688640.

The previous prime is 131044373. The next prime is 131044393. The reversal of 131044386 is 683440131.

It is a super-2 number, since 2×131044386² = 34345262204233992, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262365 + ... + 262863.

It is an arithmetic number, because the mean of its divisors is an integer number (4698000).

Almost surely, 2^131044386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131044386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150336000).

131044386 is an abundant number, since it is smaller than the sum of its proper divisors (169627614).

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

131044386 is a wasteful number, since it uses less digits than its factorization.

131044386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 131044386 is about 11447.4619894543. The cubic root of 131044386 is about 507.9326615229.

The spelling of 131044386 in words is "one hundred thirty-one million, forty-four thousand, three hundred eighty-six".