45605723 has 4 divisors (see below), whose sum is σ = 45619560. Its totient is φ = 45591888.

The previous prime is 45605701. The next prime is 45605737. The reversal of 45605723 is 32750654.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 45605723 - 2⁸ = 45605467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45605723.

It is not an unprimeable number, because it can be changed into a prime (45605753) 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 3 ways as a sum of consecutive naturals, for example, 1208 + ... + 9626.

It is an arithmetic number, because the mean of its divisors is an integer number (11404890).

Almost surely, 2^45605723 is an apocalyptic number.

45605723 is a deficient number, since it is larger than the sum of its proper divisors (13837).

45605723 is an equidigital number, since it uses as much as digits as its factorization.

45605723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13836.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 45605723 is about 6753.2009447372. The cubic root of 45605723 is about 357.2781429491.

The spelling of 45605723 in words is "forty-five million, six hundred five thousand, seven hundred twenty-three".