57919138 has 8 divisors (see below), whose sum is σ = 87258780. Its totient is φ = 28832880.

The previous prime is 57919133. The next prime is 57919217. The reversal of 57919138 is 83191975.

It can be written as a sum of positive squares in 2 ways, for example, as 53538489 + 4380649 = 7317^2 + 2093^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 57919094 and 57919103.

It is not an unprimeable number, because it can be changed into a prime (57919133) 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, 62773 + ... + 63688.

Almost surely, 2^57919138 is an apocalyptic number.

57919138 is a deficient number, since it is larger than the sum of its proper divisors (29339642).

57919138 is a wasteful number, since it uses less digits than its factorization.

57919138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126692.

The product of its digits is 68040, while the sum is 43.

The square root of 57919138 is about 7610.4624038228. The cubic root of 57919138 is about 386.9076914182.

The spelling of 57919138 in words is "fifty-seven million, nine hundred nineteen thousand, one hundred thirty-eight".