254842979 has 4 divisors (see below), whose sum is σ = 254874984. Its totient is φ = 254810976.

The previous prime is 254842961. The next prime is 254842993. The reversal of 254842979 is 979248452.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 254842979 - 2²⁰ = 253794403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254842949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6344 + ... + 23450.

It is an arithmetic number, because the mean of its divisors is an integer number (63718746).

Almost surely, 2^254842979 is an apocalyptic number.

254842979 is a deficient number, since it is larger than the sum of its proper divisors (32005).

254842979 is a wasteful number, since it uses less digits than its factorization.

254842979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32004.

The product of its digits is 1451520, while the sum is 50.

The square root of 254842979 is about 15963.8021473583. The cubic root of 254842979 is about 634.0023841658.

The spelling of 254842979 in words is "two hundred fifty-four million, eight hundred forty-two thousand, nine hundred seventy-nine".