57148339 has 4 divisors (see below), whose sum is σ = 60510024. Its totient is φ = 53786656.

The previous prime is 57148331. The next prime is 57148361. The reversal of 57148339 is 93384175.

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

It is a cyclic number.

It is not a de Polignac number, because 57148339 - 2³ = 57148331 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57148331) 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, 1680817 + ... + 1680850.

It is an arithmetic number, because the mean of its divisors is an integer number (15127506).

Almost surely, 2^57148339 is an apocalyptic number.

57148339 is a deficient number, since it is larger than the sum of its proper divisors (3361685).

57148339 is a wasteful number, since it uses less digits than its factorization.

57148339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361684.

The product of its digits is 90720, while the sum is 40.

The square root of 57148339 is about 7559.6520422570. The cubic root of 57148339 is about 385.1836735341.

The spelling of 57148339 in words is "fifty-seven million, one hundred forty-eight thousand, three hundred thirty-nine".