45345243 has 4 divisors (see below), whose sum is σ = 60460328. Its totient is φ = 30230160.

The previous prime is 45345197. The next prime is 45345247. The reversal of 45345243 is 34254354.

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

It is not a de Polignac number, because 45345243 - 2⁸ = 45344987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45345243.

It is not an unprimeable number, because it can be changed into a prime (45345247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7557538 + ... + 7557543.

It is an arithmetic number, because the mean of its divisors is an integer number (15115082).

Almost surely, 2^45345243 is an apocalyptic number.

45345243 is a deficient number, since it is larger than the sum of its proper divisors (15115085).

45345243 is a wasteful number, since it uses less digits than its factorization.

45345243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15115084.

The product of its digits is 28800, while the sum is 30.

The square root of 45345243 is about 6733.8876587006. The cubic root of 45345243 is about 356.5966381666.

Adding to 45345243 its reverse (34254354), we get a palindrome (79599597).

The spelling of 45345243 in words is "forty-five million, three hundred forty-five thousand, two hundred forty-three".