45122239 has 4 divisors (see below), whose sum is σ = 45973656. Its totient is φ = 44270824.

The previous prime is 45122237. The next prime is 45122243. The reversal of 45122239 is 93222154.

45122239 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 is a cyclic number.

It is not a de Polignac number, because 45122239 - 2¹ = 45122237 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 (45122237) 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, 425629 + ... + 425734.

It is an arithmetic number, because the mean of its divisors is an integer number (11493414).

Almost surely, 2^45122239 is an apocalyptic number.

45122239 is a deficient number, since it is larger than the sum of its proper divisors (851417).

45122239 is an equidigital number, since it uses as much as digits as its factorization.

45122239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851416.

The product of its digits is 4320, while the sum is 28.

The square root of 45122239 is about 6717.3089105683. The cubic root of 45122239 is about 356.0111067317.

The spelling of 45122239 in words is "forty-five million, one hundred twenty-two thousand, two hundred thirty-nine".