31422112 has 12 divisors (see below), whose sum is σ = 61862346. Its totient is φ = 15711040.

The previous prime is 31422101. The next prime is 31422151. The reversal of 31422112 is 21122413.

It can be written as a sum of positive squares in only one way, i.e., 24641296 + 6780816 = 4964^2 + 2604^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490939 + ... + 491002.

Almost surely, 2^31422112 is an apocalyptic number.

31422112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31422112 is a deficient number, since it is larger than the sum of its proper divisors (30440234).

31422112 is an equidigital number, since it uses as much as digits as its factorization.

31422112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981951 (or 981943 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 31422112 is about 5605.5429710243. The cubic root of 31422112 is about 315.5574641894.

Adding to 31422112 its reverse (21122413), we get a palindrome (52544525).

The spelling of 31422112 in words is "thirty-one million, four hundred twenty-two thousand, one hundred twelve".