45283209 has 4 divisors (see below), whose sum is σ = 60377616. Its totient is φ = 30188804.

The previous prime is 45283207. The next prime is 45283237. The reversal of 45283209 is 90238254.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45283209 - 2¹ = 45283207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45283209.

It is not an unprimeable number, because it can be changed into a prime (45283207) 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, 7547199 + ... + 7547204.

It is an arithmetic number, because the mean of its divisors is an integer number (15094404).

Almost surely, 2^45283209 is an apocalyptic number.

It is an amenable number.

45283209 is a deficient number, since it is larger than the sum of its proper divisors (15094407).

45283209 is a wasteful number, since it uses less digits than its factorization.

45283209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15094406.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 45283209 is about 6729.2799763422. The cubic root of 45283209 is about 356.4339514137.

The spelling of 45283209 in words is "forty-five million, two hundred eighty-three thousand, two hundred nine".