45219329 has 4 divisors (see below), whose sum is σ = 45233220. Its totient is φ = 45205440.

The previous prime is 45219301. The next prime is 45219347. The reversal of 45219329 is 92391254.

45219329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92391254 = 2 ⋅46195627.

It can be written as a sum of positive squares in 2 ways, for example, as 41628304 + 3591025 = 6452^2 + 1895^2 .

It is a cyclic number.

It is not a de Polignac number, because 45219329 - 2⁸ = 45219073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45219929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869 + ... + 9549.

It is an arithmetic number, because the mean of its divisors is an integer number (11308305).

It is a Poulet number, since it divides 2^45219328-1.

Almost surely, 2^45219329 is an apocalyptic number.

It is an amenable number.

45219329 is a deficient number, since it is larger than the sum of its proper divisors (13891).

45219329 is an equidigital number, since it uses as much as digits as its factorization.

45219329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13890.

The product of its digits is 19440, while the sum is 35.

The square root of 45219329 is about 6724.5318796181. The cubic root of 45219329 is about 356.2662680988.

The spelling of 45219329 in words is "forty-five million, two hundred nineteen thousand, three hundred twenty-nine".