45047903 has 4 divisors (see below), whose sum is σ = 45127368. Its totient is φ = 44968440.

The previous prime is 45047881. The next prime is 45047921. The reversal of 45047903 is 30974054.

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 45047903 - 2⁶ = 45047839 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 45047903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45047983) 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, 38876 + ... + 40017.

It is an arithmetic number, because the mean of its divisors is an integer number (11281842).

Almost surely, 2^45047903 is an apocalyptic number.

45047903 is a deficient number, since it is larger than the sum of its proper divisors (79465).

45047903 is an equidigital number, since it uses as much as digits as its factorization.

45047903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79464.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 45047903 is about 6711.7734616121. The cubic root of 45047903 is about 355.8154974390.

The spelling of 45047903 in words is "forty-five million, forty-seven thousand, nine hundred three".