31314005 has 4 divisors (see below), whose sum is σ = 37576812. Its totient is φ = 25051200.

The previous prime is 31313993. The next prime is 31314013. The reversal of 31314005 is 50041313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50041313 = 7 ⋅7148759.

It can be written as a sum of positive squares in 2 ways, for example, as 5982916 + 25331089 = 2446^2 + 5033^2 .

It is not a de Polignac number, because 31314005 - 2⁸ = 31313749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3131396 + ... + 3131405.

It is an arithmetic number, because the mean of its divisors is an integer number (9394203).

Almost surely, 2^31314005 is an apocalyptic number.

It is an amenable number.

31314005 is a deficient number, since it is larger than the sum of its proper divisors (6262807).

31314005 is an equidigital number, since it uses as much as digits as its factorization.

31314005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6262806.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 31314005 is about 5595.8917966666. The cubic root of 31314005 is about 315.1951591510.

Adding to 31314005 its reverse (50041313), we get a palindrome (81355318).

The spelling of 31314005 in words is "thirty-one million, three hundred fourteen thousand, five".