131050440 has 64 divisors (see below), whose sum is σ = 436838400. Its totient is φ = 34946496.

The previous prime is 131050427. The next prime is 131050457. The reversal of 131050440 is 44050131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59592 + ... + 61751.

It is an arithmetic number, because the mean of its divisors is an integer number (6825600).

Almost surely, 2^131050440 is an apocalyptic number.

131050440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131050440 is an abundant number, since it is smaller than the sum of its proper divisors (305787960).

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

131050440 is a wasteful number, since it uses less digits than its factorization.

131050440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121363 (or 121353 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 131050440 is about 11447.7264118252. The cubic root of 131050440 is about 507.9404832417.

The spelling of 131050440 in words is "one hundred thirty-one million, fifty thousand, four hundred forty".