45415145 has 4 divisors (see below), whose sum is σ = 54498180. Its totient is φ = 36332112.

The previous prime is 45415129. The next prime is 45415151. The reversal of 45415145 is 54151454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16556761 + 28858384 = 4069^2 + 5372^2 .

It is a cyclic number.

It is not a de Polignac number, because 45415145 - 2⁴ = 45415129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4541510 + ... + 4541519.

It is an arithmetic number, because the mean of its divisors is an integer number (13624545).

Almost surely, 2^45415145 is an apocalyptic number.

It is an amenable number.

45415145 is a deficient number, since it is larger than the sum of its proper divisors (9083035).

45415145 is an equidigital number, since it uses as much as digits as its factorization.

45415145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9083034.

The product of its digits is 8000, while the sum is 29.

The square root of 45415145 is about 6739.0759752358. The cubic root of 45415145 is about 356.7797813798.

Adding to 45415145 its reverse (54151454), we get a palindrome (99566599).

The spelling of 45415145 in words is "forty-five million, four hundred fifteen thousand, one hundred forty-five".