1321359 has 16 divisors (see below), whose sum is σ = 2009952. Its totient is φ = 764928.

The previous prime is 1321357. The next prime is 1321363. The reversal of 1321359 is 9531231.

It is a happy number.

It is not a de Polignac number, because 1321359 - 2¹ = 1321357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334 + ... + 1659.

It is an arithmetic number, because the mean of its divisors is an integer number (125622).

2^1321359 is an apocalyptic number.

1321359 is a deficient number, since it is larger than the sum of its proper divisors (688593).

1321359 is a wasteful number, since it uses less digits than its factorization.

1321359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026.

The product of its digits is 810, while the sum is 24.

The square root of 1321359 is about 1149.5038059963. The cubic root of 1321359 is about 109.7337638544.

The spelling of 1321359 in words is "one million, three hundred twenty-one thousand, three hundred fifty-nine".