1042519979 has 2 divisors, whose sum is σ = 1042519980. Its totient is φ = 1042519978.

The previous prime is 1042519967. The next prime is 1042520009. The reversal of 1042519979 is 9799152401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1042519979 - 2⁴ = 1042519963 is a prime.

It is a super-2 number, since 2×1042519979² = 2173695813228320882, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1042510979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521259989 + 521259990.

It is an arithmetic number, because the mean of its divisors is an integer number (521259990).

Almost surely, 2^1042519979 is an apocalyptic number.

1042519979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042519979 is an equidigital number, since it uses as much as digits as its factorization.

1042519979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 1042519979 is about 32288.0779700496. The cubic root of 1042519979 is about 1013.9770580054.

The spelling of 1042519979 in words is "one billion, forty-two million, five hundred nineteen thousand, nine hundred seventy-nine".