145168018 has 16 divisors (see below), whose sum is σ = 230760000. Its totient is φ = 68299632.

The previous prime is 145167977. The next prime is 145168021. The reversal of 145168018 is 810861541.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7158 + ... + 18481.

It is an arithmetic number, because the mean of its divisors is an integer number (14422500).

Almost surely, 2^145168018 is an apocalyptic number.

145168018 is a deficient number, since it is larger than the sum of its proper divisors (85591982).

145168018 is a wasteful number, since it uses less digits than its factorization.

145168018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25809.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 145168018 is about 12048.5691266640. The cubic root of 145168018 is about 525.5616278484.

The spelling of 145168018 in words is "one hundred forty-five million, one hundred sixty-eight thousand, eighteen".