31230589 has 4 divisors (see below), whose sum is σ = 33632956. Its totient is φ = 28828224.

The previous prime is 31230587. The next prime is 31230611. The reversal of 31230589 is 98503213.

It is a happy number.

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 1582564 + 29648025 = 1258^2 + 5445^2 .

It is a cyclic number.

It is not a de Polignac number, because 31230589 - 2¹ = 31230587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31230589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230587) 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, 1201164 + ... + 1201189.

It is an arithmetic number, because the mean of its divisors is an integer number (8408239).

Almost surely, 2^31230589 is an apocalyptic number.

It is an amenable number.

31230589 is a deficient number, since it is larger than the sum of its proper divisors (2402367).

31230589 is a wasteful number, since it uses less digits than its factorization.

31230589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402366.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 31230589 is about 5588.4335014385. The cubic root of 31230589 is about 314.9150320925.

The spelling of 31230589 in words is "thirty-one million, two hundred thirty thousand, five hundred eighty-nine".