45105243 has 4 divisors (see below), whose sum is σ = 60140328. Its totient is φ = 30070160.

The previous prime is 45105241. The next prime is 45105251. The reversal of 45105243 is 34250154.

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 45105243 - 2¹ = 45105241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45105241) 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, 7517538 + ... + 7517543.

It is an arithmetic number, because the mean of its divisors is an integer number (15035082).

Almost surely, 2^45105243 is an apocalyptic number.

45105243 is a deficient number, since it is larger than the sum of its proper divisors (15035085).

45105243 is a wasteful number, since it uses less digits than its factorization.

45105243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15035084.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 45105243 is about 6716.0437014659. The cubic root of 45105243 is about 355.9664020601.

Adding to 45105243 its reverse (34250154), we get a palindrome (79355397).

The spelling of 45105243 in words is "forty-five million, one hundred five thousand, two hundred forty-three".