45072003 has 16 divisors (see below), whose sum is σ = 62877600. Its totient is φ = 28680960.

The previous prime is 45071987. The next prime is 45072017. The reversal of 45072003 is 30027054.

It is a happy number.

It is not a de Polignac number, because 45072003 - 2⁴ = 45071987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45072023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4833 + ... + 10653.

It is an arithmetic number, because the mean of its divisors is an integer number (3929850).

Almost surely, 2^45072003 is an apocalyptic number.

45072003 is a deficient number, since it is larger than the sum of its proper divisors (17805597).

45072003 is a wasteful number, since it uses less digits than its factorization.

45072003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5942.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 45072003 is about 6713.5685741638. The cubic root of 45072003 is about 355.8789382370.

Adding to 45072003 its reverse (30027054), we get a palindrome (75099057).

The spelling of 45072003 in words is "forty-five million, seventy-two thousand, three".