131281274 has 16 divisors (see below), whose sum is σ = 200491200. Its totient is φ = 64457184.

The previous prime is 131281273. The next prime is 131281351. The reversal of 131281274 is 472182131.

It is not an unprimeable number, because it can be changed into a prime (131281273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46742 + ... + 49470.

It is an arithmetic number, because the mean of its divisors is an integer number (12530700).

Almost surely, 2^131281274 is an apocalyptic number.

131281274 is a deficient number, since it is larger than the sum of its proper divisors (69209926).

131281274 is a wasteful number, since it uses less digits than its factorization.

131281274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157.

The product of its digits is 2688, while the sum is 29.

The square root of 131281274 is about 11457.8040653521. The cubic root of 131281274 is about 508.2385393665.

The spelling of 131281274 in words is "one hundred thirty-one million, two hundred eighty-one thousand, two hundred seventy-four".