354131979 has 16 divisors (see below), whose sum is σ = 484048800. Its totient is φ = 230224896.

The previous prime is 354131977. The next prime is 354131993. The reversal of 354131979 is 979131453.

It is not a de Polignac number, because 354131979 - 2¹ = 354131977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 354131979.

It is not an unprimeable number, because it can be changed into a prime (354131971) 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, 10407 + ... + 28575.

It is an arithmetic number, because the mean of its divisors is an integer number (30253050).

Almost surely, 2^354131979 is an apocalyptic number.

354131979 is a deficient number, since it is larger than the sum of its proper divisors (129916821).

354131979 is a wasteful number, since it uses less digits than its factorization.

354131979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18334.

The product of its digits is 102060, while the sum is 42.

The square root of 354131979 is about 18818.3946977419. The cubic root of 354131979 is about 707.4922965694.

The spelling of 354131979 in words is "three hundred fifty-four million, one hundred thirty-one thousand, nine hundred seventy-nine".