31341473 has 4 divisors (see below), whose sum is σ = 31440660. Its totient is φ = 31242288.

The previous prime is 31341467. The next prime is 31341487. The reversal of 31341473 is 37414313.

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 16418704 + 14922769 = 4052^2 + 3863^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31341473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31341413) 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, 49118 + ... + 49751.

It is an arithmetic number, because the mean of its divisors is an integer number (7860165).

Almost surely, 2^31341473 is an apocalyptic number.

It is an amenable number.

31341473 is a deficient number, since it is larger than the sum of its proper divisors (99187).

31341473 is an equidigital number, since it uses as much as digits as its factorization.

31341473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99186.

The product of its digits is 3024, while the sum is 26.

The square root of 31341473 is about 5598.3455591809. The cubic root of 31341473 is about 315.2872931167.

Adding to 31341473 its reverse (37414313), we get a palindrome (68755786).

The spelling of 31341473 in words is "thirty-one million, three hundred forty-one thousand, four hundred seventy-three".