557139 has 8 divisors (see below), whose sum is σ = 810432. Its totient is φ = 337640.

The previous prime is 557093. The next prime is 557153. The reversal of 557139 is 931755.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 557139 - 2⁸ = 556883 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (557159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8409 + ... + 8474.

It is an arithmetic number, because the mean of its divisors is an integer number (101304).

2⁵⁵⁷¹³⁹ is an apocalyptic number.

557139 is a deficient number, since it is larger than the sum of its proper divisors (253293).

557139 is a wasteful number, since it uses less digits than its factorization.

557139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16897.

The product of its digits is 4725, while the sum is 30.

The square root of 557139 is about 746.4174435261. The cubic root of 557139 is about 82.2850972555.

It can be divided in two parts, 557 and 139, that added together give a palindrome (696).

The spelling of 557139 in words is "five hundred fifty-seven thousand, one hundred thirty-nine".