331254479 has 4 divisors (see below), whose sum is σ = 331320000. Its totient is φ = 331188960.

The previous prime is 331254439. The next prime is 331254541. The reversal of 331254479 is 974452133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974452133 = 139 ⋅7010447.

It is a cyclic number.

It is not a de Polignac number, because 331254479 - 2²⁴ = 314477263 is a prime.

It is a super-2 number, since 2×331254479² = 219459059715122882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331254409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24479 + ... + 35520.

It is an arithmetic number, because the mean of its divisors is an integer number (82830000).

Almost surely, 2^331254479 is an apocalyptic number.

331254479 is a deficient number, since it is larger than the sum of its proper divisors (65521).

331254479 is an equidigital number, since it uses as much as digits as its factorization.

331254479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65520.

The product of its digits is 90720, while the sum is 38.

The square root of 331254479 is about 18200.3977703785. The cubic root of 331254479 is about 691.9168703809.

The spelling of 331254479 in words is "three hundred thirty-one million, two hundred fifty-four thousand, four hundred seventy-nine".