1373945297 has 2 divisors, whose sum is σ = 1373945298. Its totient is φ = 1373945296.

The previous prime is 1373945291. The next prime is 1373945299. The reversal of 1373945297 is 7925493731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 981944896 + 392000401 = 31336^2 + 19799^2 .

It is a cyclic number.

It is not a de Polignac number, because 1373945297 - 2¹⁸ = 1373683153 is a prime.

Together with 1373945299, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1373945291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686972648 + 686972649.

It is an arithmetic number, because the mean of its divisors is an integer number (686972649).

Almost surely, 2^1373945297 is an apocalyptic number.

It is an amenable number.

1373945297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373945297 is an equidigital number, since it uses as much as digits as its factorization.

1373945297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 50.

The square root of 1373945297 is about 37066.7680948852. The cubic root of 1373945297 is about 1111.7056527422.

The spelling of 1373945297 in words is "one billion, three hundred seventy-three million, nine hundred forty-five thousand, two hundred ninety-seven".