1397271353 has 2 divisors, whose sum is σ = 1397271354. Its totient is φ = 1397271352.

The previous prime is 1397271331. The next prime is 1397271389. The reversal of 1397271353 is 3531727931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1293984784 + 103286569 = 35972^2 + 10163^2 .

It is an emirp because it is prime and its reverse (3531727931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1397271353 - 2⁶ = 1397271289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1397271353.

It is not a weakly prime, because it can be changed into another prime (1397271313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698635676 + 698635677.

It is an arithmetic number, because the mean of its divisors is an integer number (698635677).

Almost surely, 2^1397271353 is an apocalyptic number.

It is an amenable number.

1397271353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1397271353 is an equidigital number, since it uses as much as digits as its factorization.

1397271353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119070, while the sum is 41.

The square root of 1397271353 is about 37380.0930041647. The cubic root of 1397271353 is about 1117.9616819571.

The spelling of 1397271353 in words is "one billion, three hundred ninety-seven million, two hundred seventy-one thousand, three hundred fifty-three".