31612106 has 16 divisors (see below), whose sum is σ = 48940416. Its totient is φ = 15305856.

The previous prime is 31612081. The next prime is 31612109. The reversal of 31612106 is 60121613.

It is not an unprimeable number, because it can be changed into a prime (31612109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7385 + ... + 10851.

It is an arithmetic number, because the mean of its divisors is an integer number (3058776).

Almost surely, 2^31612106 is an apocalyptic number.

31612106 is a deficient number, since it is larger than the sum of its proper divisors (17328310).

31612106 is a wasteful number, since it uses less digits than its factorization.

31612106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 31612106 is about 5622.4644062902. The cubic root of 31612106 is about 316.1921933431.

Adding to 31612106 its reverse (60121613), we get a palindrome (91733719).

The spelling of 31612106 in words is "thirty-one million, six hundred twelve thousand, one hundred six".