445020111 has 24 divisors (see below), whose sum is σ = 660763584. Its totient is φ = 288475200.

The previous prime is 445020091. The next prime is 445020137. The reversal of 445020111 is 111020544.

445020111 is a `hidden beast` number, since 4 + 450 + 201 + 11 = 666.

It is not a de Polignac number, because 445020111 - 2⁷ = 445019983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445020161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63061 + ... + 69761.

It is an arithmetic number, because the mean of its divisors is an integer number (27531816).

Almost surely, 2^445020111 is an apocalyptic number.

445020111 is a deficient number, since it is larger than the sum of its proper divisors (215743473).

445020111 is a wasteful number, since it uses less digits than its factorization.

445020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6911 (or 6908 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 445020111 is about 21095.4997807589. The cubic root of 445020111 is about 763.4721730678.

Adding to 445020111 its reverse (111020544), we get a palindrome (556040655).

The spelling of 445020111 in words is "four hundred forty-five million, twenty thousand, one hundred eleven".