1397283529 has 2 divisors, whose sum is σ = 1397283530. Its totient is φ = 1397283528.

The previous prime is 1397283521. The next prime is 1397283551. The reversal of 1397283529 is 9253827931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 763251129 + 634032400 = 27627^2 + 25180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1397283529 - 2³ = 1397283521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1397283521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698641764 + 698641765.

It is an arithmetic number, because the mean of its divisors is an integer number (698641765).

Almost surely, 2^1397283529 is an apocalyptic number.

It is an amenable number.

1397283529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1397283529 is an equidigital number, since it uses as much as digits as its factorization.

1397283529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 1397283529 is about 37380.2558712484. The cubic root of 1397283529 is about 1117.9649293010.

The spelling of 1397283529 in words is "one billion, three hundred ninety-seven million, two hundred eighty-three thousand, five hundred twenty-nine".