1345117 has 2 divisors, whose sum is σ = 1345118. Its totient is φ = 1345116.

The previous prime is 1345079. The next prime is 1345129. The reversal of 1345117 is 7115431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1094116 + 251001 = 1046^2 + 501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345117 is a prime.

It is a Chen prime.

1345117 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672558 + 672559.

It is an arithmetic number, because the mean of its divisors is an integer number (672559).

2^1345117 is an apocalyptic number.

It is an amenable number.

1345117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345117 is an equidigital number, since it uses as much as digits as its factorization.

1345117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420, while the sum is 22.

The square root of 1345117 is about 1159.7917916592. The cubic root of 1345117 is about 110.3875311917.

The spelling of 1345117 in words is "one million, three hundred forty-five thousand, one hundred seventeen".