167898149 has 2 divisors, whose sum is σ = 167898150. Its totient is φ = 167898148.

The previous prime is 167898131. The next prime is 167898161. The reversal of 167898149 is 941898761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142324900 + 25573249 = 11930^2 + 5057^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167898149 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 167898149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167898349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83949074 + 83949075.

It is an arithmetic number, because the mean of its divisors is an integer number (83949075).

Almost surely, 2^167898149 is an apocalyptic number.

It is an amenable number.

167898149 is a deficient number, since it is larger than the sum of its proper divisors (1).

167898149 is an equidigital number, since it uses as much as digits as its factorization.

167898149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 53.

The square root of 167898149 is about 12957.5518135179. The cubic root of 167898149 is about 551.6733051210.

The spelling of 167898149 in words is "one hundred sixty-seven million, eight hundred ninety-eight thousand, one hundred forty-nine".