1345589269 has 2 divisors, whose sum is σ = 1345589270. Its totient is φ = 1345589268.

The previous prime is 1345589261. The next prime is 1345589293. The reversal of 1345589269 is 9629855431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1323140625 + 22448644 = 36375^2 + 4738^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345589269 - 2³ = 1345589261 is a prime.

It is a super-2 number, since 2×1345589269² = 3621220961695908722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345589261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672794634 + 672794635.

It is an arithmetic number, because the mean of its divisors is an integer number (672794635).

Almost surely, 2^1345589269 is an apocalyptic number.

It is an amenable number.

1345589269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345589269 is an equidigital number, since it uses as much as digits as its factorization.

1345589269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 52.

The square root of 1345589269 is about 36682.2745886893. The cubic root of 1345589269 is about 1104.0044865764.

The spelling of 1345589269 in words is "one billion, three hundred forty-five million, five hundred eighty-nine thousand, two hundred sixty-nine".