445604121 has 6 divisors (see below), whose sum is σ = 643650410. Its totient is φ = 297069408.

The previous prime is 445604063. The next prime is 445604123. The reversal of 445604121 is 121406544.

445604121 is a `hidden beast` number, since 4 + 45 + 604 + 12 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 419225625 + 26378496 = 20475^2 + 5136^2 .

It is not a de Polignac number, because 445604121 - 2⁶ = 445604057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445604123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24755776 + ... + 24755793.

Almost surely, 2^445604121 is an apocalyptic number.

It is an amenable number.

445604121 is a deficient number, since it is larger than the sum of its proper divisors (198046289).

445604121 is a wasteful number, since it uses less digits than its factorization.

445604121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49511575 (or 49511572 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 445604121 is about 21109.3372941928. The cubic root of 445604121 is about 763.8060010385.

The spelling of 445604121 in words is "four hundred forty-five million, six hundred four thousand, one hundred twenty-one".