145668204 has 36 divisors (see below), whose sum is σ = 401692200. Its totient is φ = 44141760.

The previous prime is 145668197. The next prime is 145668217. The reversal of 145668204 is 402866541.

145668204 is a `hidden beast` number, since 14 + 566 + 82 + 0 + 4 = 666.

145668204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183529 + ... + 184320.

Almost surely, 2^145668204 is an apocalyptic number.

It is an amenable number.

145668204 is an abundant number, since it is smaller than the sum of its proper divisors (256023996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145668204 is a wasteful number, since it uses less digits than its factorization.

145668204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367870 (or 367865 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 145668204 is about 12069.3083480372. The cubic root of 145668204 is about 526.1645550101.

The spelling of 145668204 in words is "one hundred forty-five million, six hundred sixty-eight thousand, two hundred four".