518154979 has 2 divisors, whose sum is σ = 518154980. Its totient is φ = 518154978.

The previous prime is 518154941. The next prime is 518154983. The reversal of 518154979 is 979451815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 518154979 - 2⁹ = 518154467 is a prime.

It is not a weakly prime, because it can be changed into another prime (518154929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259077489 + 259077490.

It is an arithmetic number, because the mean of its divisors is an integer number (259077490).

Almost surely, 2^518154979 is an apocalyptic number.

518154979 is a deficient number, since it is larger than the sum of its proper divisors (1).

518154979 is an equidigital number, since it uses as much as digits as its factorization.

518154979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 49.

The square root of 518154979 is about 22763.0177920240. The cubic root of 518154979 is about 803.1929575525.

The spelling of 518154979 in words is "five hundred eighteen million, one hundred fifty-four thousand, nine hundred seventy-nine".