145168123 has 2 divisors, whose sum is σ = 145168124. Its totient is φ = 145168122.

The previous prime is 145168061. The next prime is 145168139. The reversal of 145168123 is 321861541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145168123 is a prime.

It is not a weakly prime, because it can be changed into another prime (145168183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72584061 + 72584062.

It is an arithmetic number, because the mean of its divisors is an integer number (72584062).

Almost surely, 2^145168123 is an apocalyptic number.

145168123 is a deficient number, since it is larger than the sum of its proper divisors (1).

145168123 is an equidigital number, since it uses as much as digits as its factorization.

145168123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 31.

The square root of 145168123 is about 12048.5734840271. The cubic root of 145168123 is about 525.5617545612.

The spelling of 145168123 in words is "one hundred forty-five million, one hundred sixty-eight thousand, one hundred twenty-three".