57123238 has 8 divisors (see below), whose sum is σ = 86158800. Its totient is φ = 28403640.

The previous prime is 57123223. The next prime is 57123239. The reversal of 57123238 is 83232175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57123239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78538 + ... + 79261.

It is an arithmetic number, because the mean of its divisors is an integer number (10769850).

Almost surely, 2^57123238 is an apocalyptic number.

57123238 is a deficient number, since it is larger than the sum of its proper divisors (29035562).

57123238 is a wasteful number, since it uses less digits than its factorization.

57123238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157982.

The product of its digits is 10080, while the sum is 31.

The square root of 57123238 is about 7557.9916644569. The cubic root of 57123238 is about 385.1272711291.

The spelling of 57123238 in words is "fifty-seven million, one hundred twenty-three thousand, two hundred thirty-eight".