31106085 has 32 divisors (see below), whose sum is σ = 52399872. Its totient is φ = 15736320.

The previous prime is 31106041. The next prime is 31106099. The reversal of 31106085 is 58060113.

It is not a de Polignac number, because 31106085 - 2¹² = 31101989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22072 + ... + 23438.

It is an arithmetic number, because the mean of its divisors is an integer number (1637496).

Almost surely, 2^31106085 is an apocalyptic number.

It is an amenable number.

31106085 is a deficient number, since it is larger than the sum of its proper divisors (21293787).

31106085 is a wasteful number, since it uses less digits than its factorization.

31106085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 31106085 is about 5577.2829406441. The cubic root of 31106085 is about 314.4959942131.

Adding to 31106085 its reverse (58060113), we get a palindrome (89166198).

The spelling of 31106085 in words is "thirty-one million, one hundred six thousand, eighty-five".