542040979 has 2 divisors, whose sum is σ = 542040980. Its totient is φ = 542040978.

The previous prime is 542040913. The next prime is 542041007. The reversal of 542040979 is 979040245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542040979 - 2²⁵ = 508486547 is a prime.

It is not a weakly prime, because it can be changed into another prime (542040179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271020489 + 271020490.

It is an arithmetic number, because the mean of its divisors is an integer number (271020490).

Almost surely, 2^542040979 is an apocalyptic number.

542040979 is a deficient number, since it is larger than the sum of its proper divisors (1).

542040979 is an equidigital number, since it uses as much as digits as its factorization.

542040979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 542040979 is about 23281.7735363954. The cubic root of 542040979 is about 815.3499339118.

The spelling of 542040979 in words is "five hundred forty-two million, forty thousand, nine hundred seventy-nine".