1345504313 has 2 divisors, whose sum is σ = 1345504314. Its totient is φ = 1345504312.

The previous prime is 1345504309. The next prime is 1345504319. The reversal of 1345504313 is 3134055431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1267146409 + 78357904 = 35597^2 + 8852^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345504313 - 2² = 1345504309 is a prime.

It is not a weakly prime, because it can be changed into another prime (1345504319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672752156 + 672752157.

It is an arithmetic number, because the mean of its divisors is an integer number (672752157).

Almost surely, 2^1345504313 is an apocalyptic number.

It is an amenable number.

1345504313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345504313 is an equidigital number, since it uses as much as digits as its factorization.

1345504313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1345504313 is about 36681.1165724273. The cubic root of 1345504313 is about 1103.9812517054.

Adding to 1345504313 its reverse (3134055431), we get a palindrome (4479559744).

The spelling of 1345504313 in words is "one billion, three hundred forty-five million, five hundred four thousand, three hundred thirteen".