71499 has 4 divisors (see below), whose sum is σ = 95336. Its totient is φ = 47664.

The previous prime is 71483. The next prime is 71503. The reversal of 71499 is 99417.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 71499 - 2⁴ = 71483 is a prime.

It is a super-2 number, since 2×71499² = 10224214002, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71419) 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, 11914 + ... + 11919.

It is an arithmetic number, because the mean of its divisors is an integer number (23834).

2⁷¹⁴⁹⁹ is an apocalyptic number.

71499 is a deficient number, since it is larger than the sum of its proper divisors (23837).

71499 is a wasteful number, since it uses less digits than its factorization.

71499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23836.

The product of its digits is 2268, while the sum is 30.

The square root of 71499 is about 267.3929692419. The cubic root of 71499 is about 41.5049590048.

The spelling of 71499 in words is "seventy-one thousand, four hundred ninety-nine".