45809122 has 4 divisors (see below), whose sum is σ = 68713686. Its totient is φ = 22904560.

The previous prime is 45809107. The next prime is 45809131. The reversal of 45809122 is 22190854.

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

It can be written as a sum of positive squares in only one way, i.e., 43309561 + 2499561 = 6581^2 + 1581^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11452279 + ... + 11452282.

Almost surely, 2^45809122 is an apocalyptic number.

45809122 is a deficient number, since it is larger than the sum of its proper divisors (22904564).

45809122 is a wasteful number, since it uses less digits than its factorization.

45809122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22904563.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 45809122 is about 6768.2436421866. The cubic root of 45809122 is about 357.8085021845.

Adding to 45809122 its reverse (22190854), we get a palindrome (67999976).

The spelling of 45809122 in words is "forty-five million, eight hundred nine thousand, one hundred twenty-two".