167143187 has 2 divisors, whose sum is σ = 167143188. Its totient is φ = 167143186.

The previous prime is 167143129. The next prime is 167143189. The reversal of 167143187 is 781341761.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167143187 is a prime.

Together with 167143189, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 167143187 parts by 18283 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 167143187.

It is not a weakly prime, because it can be changed into another prime (167143189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83571593 + 83571594.

It is an arithmetic number, because the mean of its divisors is an integer number (83571594).

Almost surely, 2^167143187 is an apocalyptic number.

167143187 is a deficient number, since it is larger than the sum of its proper divisors (1).

167143187 is an equidigital number, since it uses as much as digits as its factorization.

167143187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 38.

The square root of 167143187 is about 12928.3868676645. The cubic root of 167143187 is about 550.8451875833.

The spelling of 167143187 in words is "one hundred sixty-seven million, one hundred forty-three thousand, one hundred eighty-seven".