31054589 has 4 divisors (see below), whose sum is σ = 31812060. Its totient is φ = 30297120.

The previous prime is 31054579. The next prime is 31054609. The reversal of 31054589 is 98545013.

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 18130564 + 12924025 = 4258^2 + 3595^2 .

It is a cyclic number.

It is not a de Polignac number, because 31054589 - 2⁸ = 31054333 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 (31054519) 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, 378674 + ... + 378755.

It is an arithmetic number, because the mean of its divisors is an integer number (7953015).

Almost surely, 2^31054589 is an apocalyptic number.

It is an amenable number.

31054589 is a deficient number, since it is larger than the sum of its proper divisors (757471).

31054589 is an equidigital number, since it uses as much as digits as its factorization.

31054589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757470.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 31054589 is about 5572.6644435135. The cubic root of 31054589 is about 314.3223493992.

The spelling of 31054589 in words is "thirty-one million, fifty-four thousand, five hundred eighty-nine".