1357097689 has 2 divisors, whose sum is σ = 1357097690. Its totient is φ = 1357097688.

The previous prime is 1357097671. The next prime is 1357097723. The reversal of 1357097689 is 9867907531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 686702025 + 670395664 = 26205^2 + 25892^2 .

It is a cyclic number.

It is not a de Polignac number, because 1357097689 - 2⁵ = 1357097657 is a prime.

It is not a weakly prime, because it can be changed into another prime (1357097669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678548844 + 678548845.

It is an arithmetic number, because the mean of its divisors is an integer number (678548845).

Almost surely, 2^1357097689 is an apocalyptic number.

It is an amenable number.

1357097689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1357097689 is an equidigital number, since it uses as much as digits as its factorization.

1357097689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The square root of 1357097689 is about 36838.8068346411. The cubic root of 1357097689 is about 1107.1429620550.

The spelling of 1357097689 in words is "one billion, three hundred fifty-seven million, ninety-seven thousand, six hundred eighty-nine".