167138285 has 4 divisors (see below), whose sum is σ = 200565948. Its totient is φ = 133710624.

The previous prime is 167138273. The next prime is 167138303. The reversal of 167138285 is 582831761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 582831761 = 43 ⋅13554227.

It can be written as a sum of positive squares in 2 ways, for example, as 98148649 + 68989636 = 9907^2 + 8306^2 .

It is a cyclic number.

It is not a de Polignac number, because 167138285 - 2⁶ = 167138221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16713824 + ... + 16713833.

It is an arithmetic number, because the mean of its divisors is an integer number (50141487).

Almost surely, 2^167138285 is an apocalyptic number.

It is an amenable number.

167138285 is a deficient number, since it is larger than the sum of its proper divisors (33427663).

167138285 is an equidigital number, since it uses as much as digits as its factorization.

167138285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33427662.

The product of its digits is 80640, while the sum is 41.

The square root of 167138285 is about 12928.1972834576. The cubic root of 167138285 is about 550.8398024411.

The spelling of 167138285 in words is "one hundred sixty-seven million, one hundred thirty-eight thousand, two hundred eighty-five".