57122 has 10 divisors (see below), whose sum is σ = 92823. Its totient is φ = 26364.

The previous prime is 57119. The next prime is 57131. The reversal of 57122 is 22175.

It is a Cunningham number, because it is equal to 239²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 57121 = 1^2 + 239^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=169.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 57122.

It is an unprimeable number.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 4388 + ... + 4400.

2⁵⁷¹²² is an apocalyptic number.

57122 is a deficient number, since it is larger than the sum of its proper divisors (35701).

57122 is an frugal number, since it uses more digits than its factorization.

57122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54 (or 15 counting only the distinct ones).

The product of its digits is 140, while the sum is 17.

The square root of 57122 is about 239.0020920411. The cubic root of 57122 is about 38.5124488893.

Adding to 57122 its reverse (22175), we get a palindrome (79297).

The spelling of 57122 in words is "fifty-seven thousand, one hundred twenty-two".