1357609697 has 2 divisors, whose sum is σ = 1357609698. Its totient is φ = 1357609696.

The previous prime is 1357609667. The next prime is 1357609709. The reversal of 1357609697 is 7969067531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 692795041 + 664814656 = 26321^2 + 25784^2 .

It is a cyclic number.

It is not a de Polignac number, because 1357609697 - 2¹⁴ = 1357593313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1357609607) 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, 678804848 + 678804849.

It is an arithmetic number, because the mean of its divisors is an integer number (678804849).

Almost surely, 2^1357609697 is an apocalyptic number.

It is an amenable number.

1357609697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1357609697 is an equidigital number, since it uses as much as digits as its factorization.

1357609697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2143260, while the sum is 53.

The square root of 1357609697 is about 36845.7554814662. The cubic root of 1357609697 is about 1107.2821794412.

The spelling of 1357609697 in words is "one billion, three hundred fifty-seven million, six hundred nine thousand, six hundred ninety-seven".