45168505 has 4 divisors (see below), whose sum is σ = 54202212. Its totient is φ = 36134800.

The previous prime is 45168499. The next prime is 45168523. The reversal of 45168505 is 50586154.

It is a happy number.

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 20358144 + 24810361 = 4512^2 + 4981^2 .

It is a de Polignac number, because none of the positive numbers 2^k-45168505 is a prime.

It is a Duffinian number.

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, 4516846 + ... + 4516855.

It is an arithmetic number, because the mean of its divisors is an integer number (13550553).

Almost surely, 2^45168505 is an apocalyptic number.

It is an amenable number.

45168505 is a deficient number, since it is larger than the sum of its proper divisors (9033707).

45168505 is an equidigital number, since it uses as much as digits as its factorization.

45168505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9033706.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 45168505 is about 6720.7518180632. The cubic root of 45168505 is about 356.1327435998.

The spelling of 45168505 in words is "forty-five million, one hundred sixty-eight thousand, five hundred five".