168047147 has 2 divisors, whose sum is σ = 168047148. Its totient is φ = 168047146.

The previous prime is 168047123. The next prime is 168047149. The reversal of 168047147 is 741740861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168047147 - 2⁸ = 168046891 is a prime.

It is a super-2 number, since 2×168047147² = 56479687229679218, which contains 22 as substring.

Together with 168047149, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168047147.

It is not a weakly prime, because it can be changed into another prime (168047149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84023573 + 84023574.

It is an arithmetic number, because the mean of its divisors is an integer number (84023574).

Almost surely, 2^168047147 is an apocalyptic number.

168047147 is a deficient number, since it is larger than the sum of its proper divisors (1).

168047147 is an equidigital number, since it uses as much as digits as its factorization.

168047147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 168047147 is about 12963.3000042427. The cubic root of 168047147 is about 551.8364475112.

The spelling of 168047147 in words is "one hundred sixty-eight million, forty-seven thousand, one hundred forty-seven".