1345651963 has 2 divisors, whose sum is σ = 1345651964. Its totient is φ = 1345651962.

The previous prime is 1345651891. The next prime is 1345651969. The reversal of 1345651963 is 3691565431.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3691565431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1345651963 - 2²⁵ = 1312097531 is a prime.

It is not a weakly prime, because it can be changed into another prime (1345651969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672825981 + 672825982.

It is an arithmetic number, because the mean of its divisors is an integer number (672825982).

Almost surely, 2^1345651963 is an apocalyptic number.

1345651963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345651963 is an equidigital number, since it uses as much as digits as its factorization.

1345651963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 43.

The square root of 1345651963 is about 36683.1291331587. The cubic root of 1345651963 is about 1104.0216323192.

The spelling of 1345651963 in words is "one billion, three hundred forty-five million, six hundred fifty-one thousand, nine hundred sixty-three".