1357909 has 8 divisors (see below), whose sum is σ = 1643328. Its totient is φ = 1095360.

The previous prime is 1357907. The next prime is 1357919. The reversal of 1357909 is 9097531.

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

It is not a de Polignac number, because 1357909 - 2¹ = 1357907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5587 + ... + 5824.

It is an arithmetic number, because the mean of its divisors is an integer number (205416).

2^1357909 is an apocalyptic number.

It is an amenable number.

1357909 is a deficient number, since it is larger than the sum of its proper divisors (285419).

1357909 is a wasteful number, since it uses less digits than its factorization.

1357909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11435.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 1357909 is about 1165.2935252545. The cubic root of 1357909 is about 110.7363545126.

The spelling of 1357909 in words is "one million, three hundred fifty-seven thousand, nine hundred nine".