31246093 has 4 divisors (see below), whose sum is σ = 32090620. Its totient is φ = 30401568.

The previous prime is 31246081. The next prime is 31246099. The reversal of 31246093 is 39064213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39064213 = 113 ⋅345701.

It can be written as a sum of positive squares in 2 ways, for example, as 29615364 + 1630729 = 5442^2 + 1277^2 .

It is a de Polignac number, because none of the positive numbers 2^k-31246093 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 (31246099) 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, 422208 + ... + 422281.

It is an arithmetic number, because the mean of its divisors is an integer number (8022655).

Almost surely, 2^31246093 is an apocalyptic number.

It is an amenable number.

31246093 is a deficient number, since it is larger than the sum of its proper divisors (844527).

31246093 is an equidigital number, since it uses as much as digits as its factorization.

31246093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844526.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 31246093 is about 5589.8204801228. The cubic root of 31246093 is about 314.9671352292.

The spelling of 31246093 in words is "thirty-one million, two hundred forty-six thousand, ninety-three".