556139167 has 8 divisors (see below), whose sum is σ = 569641424. Its totient is φ = 542662848.

The previous prime is 556139159. The next prime is 556139189. The reversal of 556139167 is 761931655.

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 556139167 - 2³ = 556139159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556139107) 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, 41083 + ... + 52915.

It is an arithmetic number, because the mean of its divisors is an integer number (71205178).

Almost surely, 2^556139167 is an apocalyptic number.

556139167 is a deficient number, since it is larger than the sum of its proper divisors (13502257).

556139167 is a wasteful number, since it uses less digits than its factorization.

556139167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12969.

The product of its digits is 170100, while the sum is 43.

The square root of 556139167 is about 23582.6030581868. The cubic root of 556139167 is about 822.3584526208.

The spelling of 556139167 in words is "five hundred fifty-six million, one hundred thirty-nine thousand, one hundred sixty-seven".