45645423 has 16 divisors (see below), whose sum is σ = 64361472. Its totient is φ = 28728000.

The previous prime is 45645407. The next prime is 45645427. The reversal of 45645423 is 32454654.

It is not a de Polignac number, because 45645423 - 2⁴ = 45645407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45645427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2173 + ... + 9798.

It is an arithmetic number, because the mean of its divisors is an integer number (4022592).

Almost surely, 2^45645423 is an apocalyptic number.

45645423 is a deficient number, since it is larger than the sum of its proper divisors (18716049).

45645423 is a wasteful number, since it uses less digits than its factorization.

45645423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12046.

The product of its digits is 57600, while the sum is 33.

The square root of 45645423 is about 6756.1396521978. The cubic root of 45645423 is about 357.3817836591.

The spelling of 45645423 in words is "forty-five million, six hundred forty-five thousand, four hundred twenty-three".