45205243 has 8 divisors (see below), whose sum is σ = 45761760. Its totient is φ = 44651520.

The previous prime is 45205241. The next prime is 45205249. The reversal of 45205243 is 34250254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45205243 - 2¹ = 45205241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45205241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69546 + ... + 70192.

It is an arithmetic number, because the mean of its divisors is an integer number (5720220).

Almost surely, 2^45205243 is an apocalyptic number.

45205243 is a deficient number, since it is larger than the sum of its proper divisors (556517).

45205243 is a wasteful number, since it uses less digits than its factorization.

45205243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 45205243 is about 6723.4844388903. The cubic root of 45205243 is about 356.2292714727.

Adding to 45205243 its reverse (34250254), we get a palindrome (79455497).

The spelling of 45205243 in words is "forty-five million, two hundred five thousand, two hundred forty-three".