45122423 has 4 divisors (see below), whose sum is σ = 45795960. Its totient is φ = 44448888.

The previous prime is 45122419. The next prime is 45122447. The reversal of 45122423 is 32422154.

It is a happy number.

45122423 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: 32422154 = 2 ⋅16211077.

It is a cyclic number.

It is not a de Polignac number, because 45122423 - 2² = 45122419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45122023) 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, 336668 + ... + 336801.

It is an arithmetic number, because the mean of its divisors is an integer number (11448990).

Almost surely, 2^45122423 is an apocalyptic number.

45122423 is a deficient number, since it is larger than the sum of its proper divisors (673537).

45122423 is an equidigital number, since it uses as much as digits as its factorization.

45122423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673536.

The product of its digits is 1920, while the sum is 23.

The square root of 45122423 is about 6717.3226065152. The cubic root of 45122423 is about 356.0115906465.

Adding to 45122423 its reverse (32422154), we get a palindrome (77544577).

The spelling of 45122423 in words is "forty-five million, one hundred twenty-two thousand, four hundred twenty-three".