1355590409 has 8 divisors (see below), whose sum is σ = 1359602880. Its totient is φ = 1351585296.

The previous prime is 1355590393. The next prime is 1355590451. The reversal of 1355590409 is 9040955531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1355590409 - 2⁴ = 1355590393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1355550409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663812 + ... + 665850.

It is an arithmetic number, because the mean of its divisors is an integer number (169950360).

Almost surely, 2^1355590409 is an apocalyptic number.

It is an amenable number.

1355590409 is a deficient number, since it is larger than the sum of its proper divisors (4012471).

1355590409 is an equidigital number, since it uses as much as digits as its factorization.

1355590409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679.

The product of its (nonzero) digits is 121500, while the sum is 41.

The square root of 1355590409 is about 36818.3433766377. The cubic root of 1355590409 is about 1106.7329221453.

The spelling of 1355590409 in words is "one billion, three hundred fifty-five million, five hundred ninety thousand, four hundred nine".