4545923 has 2 divisors, whose sum is σ = 4545924. Its totient is φ = 4545922.

The previous prime is 4545913. The next prime is 4545943. The reversal of 4545923 is 3295454.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4545923 - 2⁶ = 4545859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4545923.

It is not a weakly prime, because it can be changed into another prime (4545913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2272961 + 2272962.

It is an arithmetic number, because the mean of its divisors is an integer number (2272962).

Almost surely, 2^4545923 is an apocalyptic number.

4545923 is a deficient number, since it is larger than the sum of its proper divisors (1).

4545923 is an equidigital number, since it uses as much as digits as its factorization.

4545923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 4545923 is about 2132.1170230548. The cubic root of 4545923 is about 165.6560716833.

The spelling of 4545923 in words is "four million, five hundred forty-five thousand, nine hundred twenty-three".