1359209 has 2 divisors, whose sum is σ = 1359210. Its totient is φ = 1359208.

The previous prime is 1359181. The next prime is 1359223. The reversal of 1359209 is 9029531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 896809 + 462400 = 947^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 1359209 - 2⁸ = 1358953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1359509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679604 + 679605.

It is an arithmetic number, because the mean of its divisors is an integer number (679605).

2^1359209 is an apocalyptic number.

It is an amenable number.

1359209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1359209 is an equidigital number, since it uses as much as digits as its factorization.

1359209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 1359209 is about 1165.8511911904. The cubic root of 1359209 is about 110.7716812161.

The spelling of 1359209 in words is "one million, three hundred fifty-nine thousand, two hundred nine".