45719 has 4 divisors (see below), whose sum is σ = 46200. Its totient is φ = 45240.

The previous prime is 45707. The next prime is 45737. The reversal of 45719 is 91754.

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 a de Polignac number, because none of the positive numbers 2^k-45719 is a prime.

It is a super-2 number, since 2×45719² = 4180453922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44 + ... + 305.

It is an arithmetic number, because the mean of its divisors is an integer number (11550).

2⁴⁵⁷¹⁹ is an apocalyptic number.

45719 is a deficient number, since it is larger than the sum of its proper divisors (481).

45719 is a wasteful number, since it uses less digits than its factorization.

45719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480.

The product of its digits is 1260, while the sum is 26.

The square root of 45719 is about 213.8200177720. The cubic root of 45719 is about 35.7573704790.

The spelling of 45719 in words is "forty-five thousand, seven hundred nineteen".