167138145 has 12 divisors (see below), whose sum is σ = 289706196. Its totient is φ = 89140320.

The previous prime is 167138131. The next prime is 167138159. The reversal of 167138145 is 541831761.

It is an interprime number because it is at equal distance from previous prime (167138131) and next prime (167138159).

It can be written as a sum of positive squares in 2 ways, for example, as 87160896 + 79977249 = 9336^2 + 8943^2 .

It is not a de Polignac number, because 167138145 - 2⁵ = 167138113 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1857046 + ... + 1857135.

It is an arithmetic number, because the mean of its divisors is an integer number (24142183).

Almost surely, 2^167138145 is an apocalyptic number.

167138145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

167138145 is a deficient number, since it is larger than the sum of its proper divisors (122568051).

167138145 is a wasteful number, since it uses less digits than its factorization.

167138145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3714192 (or 3714189 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 167138145 is about 12928.1918689351. The cubic root of 167138145 is about 550.8396486411.

The spelling of 167138145 in words is "one hundred sixty-seven million, one hundred thirty-eight thousand, one hundred forty-five".