165061123 has 2 divisors, whose sum is σ = 165061124. Its totient is φ = 165061122.

The previous prime is 165061111. The next prime is 165061159. The reversal of 165061123 is 321160561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165061123 - 2⁹ = 165060611 is a prime.

It is a super-2 number, since 2×165061123² = 54490348652042258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (165061163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82530561 + 82530562.

It is an arithmetic number, because the mean of its divisors is an integer number (82530562).

Almost surely, 2^165061123 is an apocalyptic number.

165061123 is a deficient number, since it is larger than the sum of its proper divisors (1).

165061123 is an equidigital number, since it uses as much as digits as its factorization.

165061123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 165061123 is about 12847.6115679141. The cubic root of 165061123 is about 548.5483737165.

The spelling of 165061123 in words is "one hundred sixty-five million, sixty-one thousand, one hundred twenty-three".