167138444 has 18 divisors (see below), whose sum is σ = 319246284. Its totient is φ = 75933040.

The previous prime is 167138431. The next prime is 167138467. The reversal of 167138444 is 444831761.

It is a happy number.

167138444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×167138444² = 55870518925482272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 167138398 and 167138407.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84782 + ... + 86730.

Almost surely, 2^167138444 is an apocalyptic number.

It is an amenable number.

167138444 is a deficient number, since it is larger than the sum of its proper divisors (152107840).

167138444 is an equidigital number, since it uses as much as digits as its factorization.

167138444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3913 (or 1962 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 167138444 is about 12928.2034328053. The cubic root of 167138444 is about 550.8399771138.

The spelling of 167138444 in words is "one hundred sixty-seven million, one hundred thirty-eight thousand, four hundred forty-four".