31300853 has 4 divisors (see below), whose sum is σ = 32146860. Its totient is φ = 30454848.

The previous prime is 31300849. The next prime is 31300879. The reversal of 31300853 is 35800313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35800313 = 19 ⋅1884227.

It can be written as a sum of positive squares in 2 ways, for example, as 26604964 + 4695889 = 5158^2 + 2167^2 .

It is not a de Polignac number, because 31300853 - 2² = 31300849 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 (31300813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422948 + ... + 423021.

It is an arithmetic number, because the mean of its divisors is an integer number (8036715).

Almost surely, 2^31300853 is an apocalyptic number.

It is an amenable number.

31300853 is a deficient number, since it is larger than the sum of its proper divisors (846007).

31300853 is an equidigital number, since it uses as much as digits as its factorization.

31300853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846006.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 31300853 is about 5594.7165254372. The cubic root of 31300853 is about 315.1510252537.

The spelling of 31300853 in words is "thirty-one million, three hundred thousand, eight hundred fifty-three".