1345497613 has 2 divisors, whose sum is σ = 1345497614. Its totient is φ = 1345497612.

The previous prime is 1345497599. The next prime is 1345497617. The reversal of 1345497613 is 3167945431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1105030564 + 240467049 = 33242^2 + 15507^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345497613 - 2¹³ = 1345489421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1345497613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345497617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672748806 + 672748807.

It is an arithmetic number, because the mean of its divisors is an integer number (672748807).

Almost surely, 2^1345497613 is an apocalyptic number.

It is an amenable number.

1345497613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345497613 is an equidigital number, since it uses as much as digits as its factorization.

1345497613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 1345497613 is about 36681.0252446684. The cubic root of 1345497613 is about 1103.9794192608.

The spelling of 1345497613 in words is "one billion, three hundred forty-five million, four hundred ninety-seven thousand, six hundred thirteen".