201045445 has 16 divisors (see below), whose sum is σ = 245035008. Its totient is φ = 158336640.

The previous prime is 201045437. The next prime is 201045469. The reversal of 201045445 is 544540102.

It is a happy number.

It is not a de Polignac number, because 201045445 - 2³ = 201045437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85840 + ... + 88150.

It is an arithmetic number, because the mean of its divisors is an integer number (15314688).

Almost surely, 2^201045445 is an apocalyptic number.

It is an amenable number.

201045445 is a deficient number, since it is larger than the sum of its proper divisors (43989563).

201045445 is a wasteful number, since it uses less digits than its factorization.

201045445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 201045445 is about 14179.0495097521. The cubic root of 201045445 is about 585.8207438995.

Adding to 201045445 its reverse (544540102), we get a palindrome (745585547).

The spelling of 201045445 in words is "two hundred one million, forty-five thousand, four hundred forty-five".