45622391 has 2 divisors, whose sum is σ = 45622392. Its totient is φ = 45622390.

The previous prime is 45622321. The next prime is 45622397. The reversal of 45622391 is 19322654.

It is a happy number.

45622391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45622391 - 2¹⁴ = 45606007 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45622397) 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, 22811195 + 22811196.

It is an arithmetic number, because the mean of its divisors is an integer number (22811196).

Almost surely, 2^45622391 is an apocalyptic number.

45622391 is a deficient number, since it is larger than the sum of its proper divisors (1).

45622391 is an equidigital number, since it uses as much as digits as its factorization.

45622391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 45622391 is about 6754.4349134476. The cubic root of 45622391 is about 357.3216637060.

The spelling of 45622391 in words is "forty-five million, six hundred twenty-two thousand, three hundred ninety-one".