71434503 has 18 divisors (see below), whose sum is σ = 120030144. Its totient is φ = 40819464.

The previous prime is 71434499. The next prime is 71434537. The reversal of 71434503 is 30543417.

It is not a de Polignac number, because 71434503 - 2² = 71434499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71434543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 80551 + ... + 81432.

Almost surely, 2^71434503 is an apocalyptic number.

71434503 is a deficient number, since it is larger than the sum of its proper divisors (48595641).

71434503 is a wasteful number, since it uses less digits than its factorization.

71434503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162003 (or 161993 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 71434503 is about 8451.8934564984. The cubic root of 71434503 is about 414.9247514411.

The spelling of 71434503 in words is "seventy-one million, four hundred thirty-four thousand, five hundred three".