445045545 has 48 divisors (see below), whose sum is σ = 887328000. Its totient is φ = 202131072.

The previous prime is 445045541. The next prime is 445045547. The reversal of 445045545 is 545540544.

It is not a de Polignac number, because 445045545 - 2² = 445045541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445045541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44956 + ... + 53954.

It is an arithmetic number, because the mean of its divisors is an integer number (18486000).

Almost surely, 2^445045545 is an apocalyptic number.

445045545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

445045545 is a deficient number, since it is larger than the sum of its proper divisors (442282455).

445045545 is a wasteful number, since it uses less digits than its factorization.

445045545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9174 (or 9171 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The square root of 445045545 is about 21096.1026021396. The cubic root of 445045545 is about 763.4867175650.

The spelling of 445045545 in words is "four hundred forty-five million, forty-five thousand, five hundred forty-five".