131273401 has 12 divisors (see below), whose sum is σ = 157973220. Its totient is φ = 108638880.

The previous prime is 131273399. The next prime is 131273479. The reversal of 131273401 is 104372131.

It can be written as a sum of positive squares in 2 ways, for example, as 78783376 + 52490025 = 8876^2 + 7245^2 .

It is not a de Polignac number, because 131273401 - 2¹ = 131273399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131273101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44770 + ... + 47611.

It is an arithmetic number, because the mean of its divisors is an integer number (13164435).

Almost surely, 2^131273401 is an apocalyptic number.

It is an amenable number.

131273401 is a deficient number, since it is larger than the sum of its proper divisors (26699819).

131273401 is an equidigital number, since it uses as much as digits as its factorization.

131273401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92424 (or 92417 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 131273401 is about 11457.4604952406. The cubic root of 131273401 is about 508.2283793950.

The spelling of 131273401 in words is "one hundred thirty-one million, two hundred seventy-three thousand, four hundred one".