71349499 has 4 divisors (see below), whose sum is σ = 76837936. Its totient is φ = 65861064.

The previous prime is 71349497. The next prime is 71349517. The reversal of 71349499 is 99494317.

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 71349499 - 2¹ = 71349497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71349491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2744199 + ... + 2744224.

It is an arithmetic number, because the mean of its divisors is an integer number (19209484).

Almost surely, 2^71349499 is an apocalyptic number.

71349499 is a deficient number, since it is larger than the sum of its proper divisors (5488437).

71349499 is a wasteful number, since it uses less digits than its factorization.

71349499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5488436.

The product of its digits is 244944, while the sum is 46.

The square root of 71349499 is about 8446.8632639578. The cubic root of 71349499 is about 414.7601052202.

The spelling of 71349499 in words is "seventy-one million, three hundred forty-nine thousand, four hundred ninety-nine".