131051394 has 12 divisors (see below), whose sum is σ = 283944726. Its totient is φ = 43683792.

The previous prime is 131051387. The next prime is 131051423. The reversal of 131051394 is 493150131.

It can be written as a sum of positive squares in only one way, i.e., 84879369 + 46172025 = 9213^2 + 6795^2 .

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 5 ways as a sum of consecutive naturals, for example, 3640299 + ... + 3640334.

Almost surely, 2^131051394 is an apocalyptic number.

131051394 is an abundant number, since it is smaller than the sum of its proper divisors (152893332).

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

131051394 is a wasteful number, since it uses less digits than its factorization.

131051394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7280641 (or 7280638 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 131051394 is about 11447.7680794118. The cubic root of 131051394 is about 507.9417157799.

The spelling of 131051394 in words is "one hundred thirty-one million, fifty-one thousand, three hundred ninety-four".