45023591 has 2 divisors, whose sum is σ = 45023592. Its totient is φ = 45023590.

The previous prime is 45023579. The next prime is 45023593. The reversal of 45023591 is 19532054.

45023591 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 45023591 - 2⁶ = 45023527 is a prime.

Together with 45023593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45023593) 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, 22511795 + 22511796.

It is an arithmetic number, because the mean of its divisors is an integer number (22511796).

Almost surely, 2^45023591 is an apocalyptic number.

45023591 is a deficient number, since it is larger than the sum of its proper divisors (1).

45023591 is an equidigital number, since it uses as much as digits as its factorization.

45023591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 45023591 is about 6709.9620714278. The cubic root of 45023591 is about 355.7514756423.

The spelling of 45023591 in words is "forty-five million, twenty-three thousand, five hundred ninety-one".