1345859 has 2 divisors, whose sum is σ = 1345860. Its totient is φ = 1345858.

The previous prime is 1345811. The next prime is 1345879. The reversal of 1345859 is 9585431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345859 is a prime.

It is a super-2 number, since 2×1345859² = 3622672895762, which contains 22 as substring.

It is a Sophie Germain prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1345879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672929 + 672930.

It is an arithmetic number, because the mean of its divisors is an integer number (672930).

2^1345859 is an apocalyptic number.

1345859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345859 is an equidigital number, since it uses as much as digits as its factorization.

1345859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 35.

The square root of 1345859 is about 1160.1116325596. Note that the first 3 decimals coincide. The cubic root of 1345859 is about 110.4078249635.

The spelling of 1345859 in words is "one million, three hundred forty-five thousand, eight hundred fifty-nine".