71746133 has 4 divisors (see below), whose sum is σ = 71863788. Its totient is φ = 71628480.

The previous prime is 71746117. The next prime is 71746201. The reversal of 71746133 is 33164717.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13712209 + 58033924 = 3703^2 + 7618^2 .

It is a cyclic number.

It is not a de Polignac number, because 71746133 - 2⁴ = 71746117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71746133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71746333) 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, 57908 + ... + 59133.

It is an arithmetic number, because the mean of its divisors is an integer number (17965947).

Almost surely, 2^71746133 is an apocalyptic number.

It is an amenable number.

71746133 is a deficient number, since it is larger than the sum of its proper divisors (117655).

71746133 is a wasteful number, since it uses less digits than its factorization.

71746133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117654.

The product of its digits is 10584, while the sum is 32.

The square root of 71746133 is about 8470.3089081804. The cubic root of 71746133 is about 415.5272400750.

The spelling of 71746133 in words is "seventy-one million, seven hundred forty-six thousand, one hundred thirty-three".