1345344379 has 2 divisors, whose sum is σ = 1345344380. Its totient is φ = 1345344378.

The previous prime is 1345344353. The next prime is 1345344431. The reversal of 1345344379 is 9734435431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1345344379 - 2⁵ = 1345344347 is a prime.

It is not a weakly prime, because it can be changed into another prime (1345344179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672672189 + 672672190.

It is an arithmetic number, because the mean of its divisors is an integer number (672672190).

Almost surely, 2^1345344379 is an apocalyptic number.

1345344379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345344379 is an equidigital number, since it uses as much as digits as its factorization.

1345344379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 43.

The square root of 1345344379 is about 36678.9364485940. The cubic root of 1345344379 is about 1103.9375082228.

The spelling of 1345344379 in words is "one billion, three hundred forty-five million, three hundred forty-four thousand, three hundred seventy-nine".