1353889 has 4 divisors (see below), whose sum is σ = 1366420. Its totient is φ = 1341360.

The previous prime is 1353887. The next prime is 1353893. The reversal of 1353889 is 9883531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1166400 + 187489 = 1080^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353889 - 2¹ = 1353887 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 (1353881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6102 + ... + 6319.

It is an arithmetic number, because the mean of its divisors is an integer number (341605).

2^1353889 is an apocalyptic number.

It is an amenable number.

1353889 is a deficient number, since it is larger than the sum of its proper divisors (12531).

1353889 is a wasteful number, since it uses less digits than its factorization.

1353889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12530.

The product of its digits is 25920, while the sum is 37.

The square root of 1353889 is about 1163.5673594597. The cubic root of 1353889 is about 110.6269706098.

The spelling of 1353889 in words is "one million, three hundred fifty-three thousand, eight hundred eighty-nine".