165308047 has 2 divisors, whose sum is σ = 165308048. Its totient is φ = 165308046.

The previous prime is 165308041. The next prime is 165308057. The reversal of 165308047 is 740803561.

It is a weak prime.

It is an emirp because it is prime and its reverse (740803561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165308047 - 2²³ = 156919439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165308041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82654023 + 82654024.

It is an arithmetic number, because the mean of its divisors is an integer number (82654024).

Almost surely, 2^165308047 is an apocalyptic number.

165308047 is a deficient number, since it is larger than the sum of its proper divisors (1).

165308047 is an equidigital number, since it uses as much as digits as its factorization.

165308047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 165308047 is about 12857.2177005758. The cubic root of 165308047 is about 548.8217719786.

The spelling of 165308047 in words is "one hundred sixty-five million, three hundred eight thousand, forty-seven".