45120445 has 8 divisors (see below), whose sum is σ = 54257760. Its totient is φ = 36020880.

The previous prime is 45120443. The next prime is 45120463. The reversal of 45120445 is 54402154.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45120445 - 2¹ = 45120443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45120443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6735 + ... + 11644.

It is an arithmetic number, because the mean of its divisors is an integer number (6782220).

Almost surely, 2^45120445 is an apocalyptic number.

It is an amenable number.

45120445 is a deficient number, since it is larger than the sum of its proper divisors (9137315).

45120445 is a wasteful number, since it uses less digits than its factorization.

45120445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18875.

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

The square root of 45120445 is about 6717.1753736225. The cubic root of 45120445 is about 356.0063884937.

Adding to 45120445 its reverse (54402154), we get a palindrome (99522599).

The spelling of 45120445 in words is "forty-five million, one hundred twenty thousand, four hundred forty-five".