445531149 has 12 divisors (see below), whose sum is σ = 735480096. Its totient is φ = 254589192.

The previous prime is 445531139. The next prime is 445531153. The reversal of 445531149 is 941135544.

It is a happy number.

It is not a de Polignac number, because 445531149 - 2¹⁷ = 445400077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445531139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3535899 + ... + 3536024.

It is an arithmetic number, because the mean of its divisors is an integer number (61290008).

Almost surely, 2^445531149 is an apocalyptic number.

It is an amenable number.

445531149 is a deficient number, since it is larger than the sum of its proper divisors (289948947).

445531149 is a wasteful number, since it uses less digits than its factorization.

445531149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7071936 (or 7071933 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 445531149 is about 21107.6087939871. The cubic root of 445531149 is about 763.7643052136.

The spelling of 445531149 in words is "four hundred forty-five million, five hundred thirty-one thousand, one hundred forty-nine".