45822121 has 4 divisors (see below), whose sum is σ = 46294612. Its totient is φ = 45349632.

The previous prime is 45822107. The next prime is 45822131. The reversal of 45822121 is 12122854.

45822121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12122854 = 2 ⋅6061427.

It can be written as a sum of positive squares in 2 ways, for example, as 12702096 + 33120025 = 3564^2 + 5755^2 .

It is a 11-Lehmer number, since φ(45822121) divides (45822121-1)¹¹.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45822121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45822131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236100 + ... + 236293.

It is an arithmetic number, because the mean of its divisors is an integer number (11573653).

Almost surely, 2^45822121 is an apocalyptic number.

It is an amenable number.

45822121 is a deficient number, since it is larger than the sum of its proper divisors (472491).

45822121 is an equidigital number, since it uses as much as digits as its factorization.

45822121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472490.

The product of its digits is 1280, while the sum is 25.

The square root of 45822121 is about 6769.2038675165. The cubic root of 45822121 is about 357.8423434272.

Adding to 45822121 its reverse (12122854), we get a palindrome (57944975).

The spelling of 45822121 in words is "forty-five million, eight hundred twenty-two thousand, one hundred twenty-one".