1345935971 has 2 divisors, whose sum is σ = 1345935972. Its totient is φ = 1345935970.

The previous prime is 1345935961. The next prime is 1345935989. The reversal of 1345935971 is 1795395431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1345935971 - 2²⁶ = 1278827107 is a prime.

It is a super-3 number, since 3×1345935971³ (a number of 28 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1345935961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672967985 + 672967986.

It is an arithmetic number, because the mean of its divisors is an integer number (672967986).

Almost surely, 2^1345935971 is an apocalyptic number.

1345935971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345935971 is an equidigital number, since it uses as much as digits as its factorization.

1345935971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 510300, while the sum is 47.

The square root of 1345935971 is about 36687.0000272576. Note that the first 4 decimals coincide. The cubic root of 1345935971 is about 1104.0992970071.

The spelling of 1345935971 in words is "one billion, three hundred forty-five million, nine hundred thirty-five thousand, nine hundred seventy-one".