167139223 has 4 divisors (see below), whose sum is σ = 176970960. Its totient is φ = 157307488.

The previous prime is 167139221. The next prime is 167139251. The reversal of 167139223 is 322931761.

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 167139223 - 2¹ = 167139221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167139221) 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, 4915843 + ... + 4915876.

It is an arithmetic number, because the mean of its divisors is an integer number (44242740).

Almost surely, 2^167139223 is an apocalyptic number.

167139223 is a deficient number, since it is larger than the sum of its proper divisors (9831737).

167139223 is an equidigital number, since it uses as much as digits as its factorization.

167139223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9831736.

The product of its digits is 13608, while the sum is 34.

The square root of 167139223 is about 12928.2335606996. The cubic root of 167139223 is about 550.8408328987.

The spelling of 167139223 in words is "one hundred sixty-seven million, one hundred thirty-nine thousand, two hundred twenty-three".