57122141 has 4 divisors (see below), whose sum is σ = 59091900. Its totient is φ = 55152384.

The previous prime is 57122137. The next prime is 57122147. The reversal of 57122141 is 14122175.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19545241 + 37576900 = 4421^2 + 6130^2 .

It is a cyclic number.

It is not a de Polignac number, because 57122141 - 2² = 57122137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57122147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984836 + ... + 984893.

It is an arithmetic number, because the mean of its divisors is an integer number (14772975).

Almost surely, 2^57122141 is an apocalyptic number.

It is an amenable number.

57122141 is a deficient number, since it is larger than the sum of its proper divisors (1969759).

57122141 is a wasteful number, since it uses less digits than its factorization.

57122141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969758.

The product of its digits is 560, while the sum is 23.

The square root of 57122141 is about 7557.9190919194. The cubic root of 57122141 is about 385.1248057733.

The spelling of 57122141 in words is "fifty-seven million, one hundred twenty-two thousand, one hundred forty-one".