31359485 has 4 divisors (see below), whose sum is σ = 37631388. Its totient is φ = 25087584.

The previous prime is 31359479. The next prime is 31359487. The reversal of 31359485 is 58495313.

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 23367556 + 7991929 = 4834^2 + 2827^2 .

It is a cyclic number.

It is not a de Polignac number, because 31359485 - 2¹⁶ = 31293949 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 (31359487) 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, 3135944 + ... + 3135953.

It is an arithmetic number, because the mean of its divisors is an integer number (9407847).

Almost surely, 2^31359485 is an apocalyptic number.

It is an amenable number.

31359485 is a deficient number, since it is larger than the sum of its proper divisors (6271903).

31359485 is an equidigital number, since it uses as much as digits as its factorization.

31359485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6271902.

The product of its digits is 64800, while the sum is 38.

The square root of 31359485 is about 5599.9540176684. The cubic root of 31359485 is about 315.3476802717.

The spelling of 31359485 in words is "thirty-one million, three hundred fifty-nine thousand, four hundred eighty-five".