45115223 has 4 divisors (see below), whose sum is σ = 45130848. Its totient is φ = 45099600.

The previous prime is 45115219. The next prime is 45115277. The reversal of 45115223 is 32251154.

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 45115223 - 2² = 45115219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45315223) 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, 2078 + ... + 9723.

It is an arithmetic number, because the mean of its divisors is an integer number (11282712).

Almost surely, 2^45115223 is an apocalyptic number.

45115223 is a deficient number, since it is larger than the sum of its proper divisors (15625).

45115223 is a wasteful number, since it uses less digits than its factorization.

45115223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15624.

The product of its digits is 1200, while the sum is 23.

The square root of 45115223 is about 6716.7866573236. The cubic root of 45115223 is about 355.9926538694.

Adding to 45115223 its reverse (32251154), we get a palindrome (77366377).

The spelling of 45115223 in words is "forty-five million, one hundred fifteen thousand, two hundred twenty-three".