1137389 has 4 divisors (see below), whose sum is σ = 1240800. Its totient is φ = 1033980.

The previous prime is 1137341. The next prime is 1137403. The reversal of 1137389 is 9837311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9837311 = 11 ⋅894301.

It is a cyclic number.

It is not a de Polignac number, because 1137389 - 2²⁰ = 88813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1137329) 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, 51689 + ... + 51710.

It is an arithmetic number, because the mean of its divisors is an integer number (310200).

2^1137389 is an apocalyptic number.

It is an amenable number.

1137389 is a deficient number, since it is larger than the sum of its proper divisors (103411).

1137389 is a wasteful number, since it uses less digits than its factorization.

1137389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103410.

The product of its digits is 4536, while the sum is 32.

The square root of 1137389 is about 1066.4844115129. The cubic root of 1137389 is about 104.3845783458.

The spelling of 1137389 in words is "one million, one hundred thirty-seven thousand, three hundred eighty-nine".