57145838 has 8 divisors (see below), whose sum is σ = 85949688. Its totient is φ = 28495944.

The previous prime is 57145831. The next prime is 57145849. The reversal of 57145838 is 83854175.

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 = 57145795 and 57145804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57145831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37556 + ... + 39047.

It is an arithmetic number, because the mean of its divisors is an integer number (10743711).

Almost surely, 2^57145838 is an apocalyptic number.

57145838 is a deficient number, since it is larger than the sum of its proper divisors (28803850).

57145838 is a wasteful number, since it uses less digits than its factorization.

57145838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76978.

The product of its digits is 134400, while the sum is 41.

The square root of 57145838 is about 7559.4866227807. The cubic root of 57145838 is about 385.1780544823.

The spelling of 57145838 in words is "fifty-seven million, one hundred forty-five thousand, eight hundred thirty-eight".