45000219 has 16 divisors (see below), whose sum is σ = 65585664. Its totient is φ = 27218400.

The previous prime is 45000211. The next prime is 45000229. The reversal of 45000219 is 91200054.

It is not a de Polignac number, because 45000219 - 2³ = 45000211 is a prime.

It is a super-2 number, since 2×45000219² = 4050039420095922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45000195 and 45000204.

It is not an unprimeable number, because it can be changed into a prime (45000211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20782 + ... + 22844.

It is an arithmetic number, because the mean of its divisors is an integer number (4099104).

Almost surely, 2^45000219 is an apocalyptic number.

45000219 is a deficient number, since it is larger than the sum of its proper divisors (20585445).

45000219 is a wasteful number, since it uses less digits than its factorization.

45000219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 45000219 is about 6708.2202557757. The cubic root of 45000219 is about 355.6899074552.

The spelling of 45000219 in words is "forty-five million, two hundred nineteen", and thus it is an aban number.