1156324979 has 2 divisors, whose sum is σ = 1156324980. Its totient is φ = 1156324978.

The previous prime is 1156324963. The next prime is 1156325003. The reversal of 1156324979 is 9794236511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1156324979 - 2⁴ = 1156324963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1156324679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578162489 + 578162490.

It is an arithmetic number, because the mean of its divisors is an integer number (578162490).

Almost surely, 2^1156324979 is an apocalyptic number.

1156324979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156324979 is an equidigital number, since it uses as much as digits as its factorization.

1156324979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The square root of 1156324979 is about 34004.7787671086. The cubic root of 1156324979 is about 1049.6068003180.

The spelling of 1156324979 in words is "one billion, one hundred fifty-six million, three hundred twenty-four thousand, nine hundred seventy-nine".