131874479 has 8 divisors (see below), whose sum is σ = 150118272. Its totient is φ = 114673240.

The previous prime is 131874473. The next prime is 131874511. The reversal of 131874479 is 974478131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-131874479 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 (131874473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260369 + ... + 260874.

It is an arithmetic number, because the mean of its divisors is an integer number (18764784).

Almost surely, 2^131874479 is an apocalyptic number.

131874479 is a deficient number, since it is larger than the sum of its proper divisors (18243793).

131874479 is a wasteful number, since it uses less digits than its factorization.

131874479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521277.

The product of its digits is 169344, while the sum is 44.

The square root of 131874479 is about 11483.6613934755. The cubic root of 131874479 is about 509.0028948311.

The spelling of 131874479 in words is "one hundred thirty-one million, eight hundred seventy-four thousand, four hundred seventy-nine".