131344279 has 16 divisors (see below), whose sum is σ = 147682080. Its totient is φ = 115776000.

The previous prime is 131344271. The next prime is 131344333. The reversal of 131344279 is 972443131.

It is a cyclic number.

It is not a de Polignac number, because 131344279 - 2³ = 131344271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131344271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80827 + ... + 82435.

It is an arithmetic number, because the mean of its divisors is an integer number (9230130).

Almost surely, 2^131344279 is an apocalyptic number.

131344279 is a deficient number, since it is larger than the sum of its proper divisors (16337801).

131344279 is a wasteful number, since it uses less digits than its factorization.

131344279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842.

The product of its digits is 18144, while the sum is 34.

The square root of 131344279 is about 11460.5531716405. The cubic root of 131344279 is about 508.3198316101.

The spelling of 131344279 in words is "one hundred thirty-one million, three hundred forty-four thousand, two hundred seventy-nine".