45265219 has 4 divisors (see below), whose sum is σ = 47233296. Its totient is φ = 43297144.

The previous prime is 45265217. The next prime is 45265247. The reversal of 45265219 is 91256254.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45265219 - 2¹ = 45265217 is a prime.

It is a super-2 number, since 2×45265219² = 4097880102235922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45265217) 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, 984004 + ... + 984049.

It is an arithmetic number, because the mean of its divisors is an integer number (11808324).

Almost surely, 2^45265219 is an apocalyptic number.

45265219 is a deficient number, since it is larger than the sum of its proper divisors (1968077).

45265219 is a wasteful number, since it uses less digits than its factorization.

45265219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968076.

The product of its digits is 21600, while the sum is 34.

The square root of 45265219 is about 6727.9431477978. The cubic root of 45265219 is about 356.3867440988.

The spelling of 45265219 in words is "forty-five million, two hundred sixty-five thousand, two hundred nineteen".