1345830979 has 2 divisors, whose sum is σ = 1345830980. Its totient is φ = 1345830978.

The previous prime is 1345830929. The next prime is 1345830991. The reversal of 1345830979 is 9790385431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1345830979 - 2⁹ = 1345830467 is a prime.

It is a super-2 number, since 2×1345830979² = 3622522048072196882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1345830929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672915489 + 672915490.

It is an arithmetic number, because the mean of its divisors is an integer number (672915490).

Almost surely, 2^1345830979 is an apocalyptic number.

1345830979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345830979 is an equidigital number, since it uses as much as digits as its factorization.

1345830979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 1345830979 is about 36685.5690837692. The cubic root of 1345830979 is about 1104.0705872195.

The spelling of 1345830979 in words is "one billion, three hundred forty-five million, eight hundred thirty thousand, nine hundred seventy-nine".