45122045 has 4 divisors (see below), whose sum is σ = 54146460. Its totient is φ = 36097632.

The previous prime is 45122039. The next prime is 45122047. The reversal of 45122045 is 54022154.

It is a happy number.

45122045 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.

It can be written as a sum of positive squares in 2 ways, for example, as 35117476 + 10004569 = 5926^2 + 3163^2 .

It is a cyclic number.

It is not a de Polignac number, because 45122045 - 2¹⁸ = 44859901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45122045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45122047) 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, 4512200 + ... + 4512209.

It is an arithmetic number, because the mean of its divisors is an integer number (13536615).

Almost surely, 2^45122045 is an apocalyptic number.

It is an amenable number.

45122045 is a deficient number, since it is larger than the sum of its proper divisors (9024415).

45122045 is an equidigital number, since it uses as much as digits as its factorization.

45122045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9024414.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 45122045 is about 6717.2944702462. The cubic root of 45122045 is about 356.0105965158.

Adding to 45122045 its reverse (54022154), we get a palindrome (99144199).

The spelling of 45122045 in words is "forty-five million, one hundred twenty-two thousand, forty-five".