145668801 has 16 divisors (see below), whose sum is σ = 216475200. Its totient is φ = 86588928.

The previous prime is 145668781. The next prime is 145668833. The reversal of 145668801 is 108866541.

145668801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145668801 - 2⁷ = 145668673 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145668801.

It is not an unprimeable number, because it can be changed into a prime (145668841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74196 + ... + 76133.

It is an arithmetic number, because the mean of its divisors is an integer number (13529700).

Almost surely, 2^145668801 is an apocalyptic number.

It is an amenable number.

145668801 is a deficient number, since it is larger than the sum of its proper divisors (70806399).

145668801 is a wasteful number, since it uses less digits than its factorization.

145668801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150368.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 145668801 is about 12069.3330801664. Note that the first 3 decimals coincide. The cubic root of 145668801 is about 526.1652738121.

The spelling of 145668801 in words is "one hundred forty-five million, six hundred sixty-eight thousand, eight hundred one".