45321239 has 2 divisors, whose sum is σ = 45321240. Its totient is φ = 45321238.

The previous prime is 45321209. The next prime is 45321271. The reversal of 45321239 is 93212354.

45321239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45321239 - 2¹² = 45317143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45321209) 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 as a sum of consecutive naturals, namely, 22660619 + 22660620.

It is an arithmetic number, because the mean of its divisors is an integer number (22660620).

Almost surely, 2^45321239 is an apocalyptic number.

45321239 is a deficient number, since it is larger than the sum of its proper divisors (1).

45321239 is an equidigital number, since it uses as much as digits as its factorization.

45321239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 29.

The square root of 45321239 is about 6732.1050942480. The cubic root of 45321239 is about 356.5337042844.

The spelling of 45321239 in words is "forty-five million, three hundred twenty-one thousand, two hundred thirty-nine".