1345913 has 2 divisors, whose sum is σ = 1345914. Its totient is φ = 1345912.

The previous prime is 1345889. The next prime is 1345921. The reversal of 1345913 is 3195431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1087849 + 258064 = 1043^2 + 508^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345913 - 2¹⁴ = 1329529 is a prime.

It is a super-2 number, since 2×1345913² = 3622963607138, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1345933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672956 + 672957.

It is an arithmetic number, because the mean of its divisors is an integer number (672957).

2^1345913 is an apocalyptic number.

It is an amenable number.

1345913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345913 is an equidigital number, since it uses as much as digits as its factorization.

1345913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 26.

The square root of 1345913 is about 1160.1349059484. The cubic root of 1345913 is about 110.4093015775.

The spelling of 1345913 in words is "one million, three hundred forty-five thousand, nine hundred thirteen".