557138 has 8 divisors (see below), whose sum is σ = 853632. Its totient is φ = 272596.

The previous prime is 557093. The next prime is 557153. The reversal of 557138 is 831755.

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

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 557138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2870 + ... + 3057.

It is an arithmetic number, because the mean of its divisors is an integer number (106704).

557138 is a Friedman number, since it can be written as 17*(8^5+5)-3, using all its digits and the basic arithmetic operations.

2⁵⁵⁷¹³⁸ is an apocalyptic number.

557138 is a deficient number, since it is larger than the sum of its proper divisors (296494).

557138 is a wasteful number, since it uses less digits than its factorization.

557138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5976.

The product of its digits is 4200, while the sum is 29.

The square root of 557138 is about 746.4167736593. The cubic root of 557138 is about 82.2850480247.

The spelling of 557138 in words is "five hundred fifty-seven thousand, one hundred thirty-eight".