131257274 has 16 divisors (see below), whose sum is σ = 208344960. Its totient is φ = 61889520.

The previous prime is 131257271. The next prime is 131257307. The reversal of 131257274 is 472752131.

It is a super-2 number, since 2×131257274² = 34456943955822152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131257274.

It is not an unprimeable number, because it can be changed into a prime (131257271) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16829 + ... + 23360.

It is an arithmetic number, because the mean of its divisors is an integer number (13021560).

Almost surely, 2^131257274 is an apocalyptic number.

131257274 is a deficient number, since it is larger than the sum of its proper divisors (77087686).

131257274 is a wasteful number, since it uses less digits than its factorization.

131257274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40285.

The product of its digits is 11760, while the sum is 32.

The square root of 131257274 is about 11456.7566963779. The cubic root of 131257274 is about 508.2075665097.

The spelling of 131257274 in words is "one hundred thirty-one million, two hundred fifty-seven thousand, two hundred seventy-four".