71125003 has 4 divisors (see below), whose sum is σ = 71294368. Its totient is φ = 70955640.

The previous prime is 71124997. The next prime is 71125079. The reversal of 71125003 is 30052117.

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 71125003 - 2⁹ = 71124491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71125903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84051 + ... + 84892.

It is an arithmetic number, because the mean of its divisors is an integer number (17823592).

Almost surely, 2^71125003 is an apocalyptic number.

71125003 is a deficient number, since it is larger than the sum of its proper divisors (169365).

71125003 is a wasteful number, since it uses less digits than its factorization.

71125003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169364.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 71125003 is about 8433.5640745772. The cubic root of 71125003 is about 414.3246440344.

The spelling of 71125003 in words is "seventy-one million, one hundred twenty-five thousand, three".