31442122 has 16 divisors (see below), whose sum is σ = 49358592. Its totient is φ = 15003360.

The previous prime is 31442113. The next prime is 31442141. The reversal of 31442122 is 22124413.

It is a self number, because there is not a number n which added to its sum of digits gives 31442122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053 + ... + 7999.

It is an arithmetic number, because the mean of its divisors is an integer number (3084912).

Almost surely, 2^31442122 is an apocalyptic number.

31442122 is a deficient number, since it is larger than the sum of its proper divisors (17916470).

31442122 is a wasteful number, since it uses less digits than its factorization.

31442122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7053.

The product of its digits is 384, while the sum is 19.

The square root of 31442122 is about 5607.3275274412. The cubic root of 31442122 is about 315.6244336427.

Adding to 31442122 its reverse (22124413), we get a palindrome (53566535).

It can be divided in two parts, 314 and 42122, that added together give a square (42436 = 206²).

The spelling of 31442122 in words is "thirty-one million, four hundred forty-two thousand, one hundred twenty-two".