1356098489 has 2 divisors, whose sum is σ = 1356098490. Its totient is φ = 1356098488.

The previous prime is 1356098467. The next prime is 1356098501. The reversal of 1356098489 is 9848906531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1169092864 + 187005625 = 34192^2 + 13675^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356098489 - 2²⁴ = 1339321273 is a prime.

It is a super-2 number, since 2×1356098489² = 3678006223736166242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1356098489.

It is not a weakly prime, because it can be changed into another prime (1356098459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678049244 + 678049245.

It is an arithmetic number, because the mean of its divisors is an integer number (678049245).

Almost surely, 2^1356098489 is an apocalyptic number.

It is an amenable number.

1356098489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356098489 is an equidigital number, since it uses as much as digits as its factorization.

1356098489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 1356098489 is about 36825.2425518149. The cubic root of 1356098489 is about 1106.8711739905.

The spelling of 1356098489 in words is "one billion, three hundred fifty-six million, ninety-eight thousand, four hundred eighty-nine".