71313236 has 12 divisors (see below), whose sum is σ = 126085428. Its totient is φ = 35288832.

The previous prime is 71313211. The next prime is 71313269. The reversal of 71313236 is 63231317.

It can be written as a sum of positive squares in 2 ways, for example, as 32947600 + 38365636 = 5740^2 + 6194^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91511 + ... + 92286.

It is an arithmetic number, because the mean of its divisors is an integer number (10507119).

Almost surely, 2^71313236 is an apocalyptic number.

It is an amenable number.

71313236 is a deficient number, since it is larger than the sum of its proper divisors (54772192).

71313236 is a wasteful number, since it uses less digits than its factorization.

71313236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183898 (or 183896 counting only the distinct ones).

The product of its digits is 2268, while the sum is 26.

The square root of 71313236 is about 8444.7164546834. The cubic root of 71313236 is about 414.6898267801.

The spelling of 71313236 in words is "seventy-one million, three hundred thirteen thousand, two hundred thirty-six".