45188245 has 4 divisors (see below), whose sum is σ = 54225900. Its totient is φ = 36150592.

The previous prime is 45188233. The next prime is 45188257. The reversal of 45188245 is 54288154.

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

It is an interprime number because it is at equal distance from previous prime (45188233) and next prime (45188257).

It can be written as a sum of positive squares in 2 ways, for example, as 19695844 + 25492401 = 4438^2 + 5049^2 .

It is a cyclic number.

It is not a de Polignac number, because 45188245 - 2⁹ = 45187733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4518820 + ... + 4518829.

It is an arithmetic number, because the mean of its divisors is an integer number (13556475).

Almost surely, 2^45188245 is an apocalyptic number.

It is an amenable number.

45188245 is a deficient number, since it is larger than the sum of its proper divisors (9037655).

45188245 is an equidigital number, since it uses as much as digits as its factorization.

45188245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9037654.

The product of its digits is 51200, while the sum is 37.

The square root of 45188245 is about 6722.2202433422. The cubic root of 45188245 is about 356.1846162965.

Subtracting 45188245 from its reverse (54288154), we obtain a palindrome (9099909).

The spelling of 45188245 in words is "forty-five million, one hundred eighty-eight thousand, two hundred forty-five".