31096361 has 4 divisors (see below), whose sum is σ = 31108224. Its totient is φ = 31084500.

The previous prime is 31096309. The next prime is 31096423. The reversal of 31096361 is 16369013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 31096361 - 2¹⁸ = 30834217 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 (31096301) 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, 65 + ... + 7886.

It is an arithmetic number, because the mean of its divisors is an integer number (7777056).

Almost surely, 2^31096361 is an apocalyptic number.

It is an amenable number.

31096361 is a deficient number, since it is larger than the sum of its proper divisors (11863).

31096361 is an equidigital number, since it uses as much as digits as its factorization.

31096361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11862.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 31096361 is about 5576.4111218596. The cubic root of 31096361 is about 314.4632195136.

The spelling of 31096361 in words is "thirty-one million, ninety-six thousand, three hundred sixty-one".