71164033 has 4 divisors (see below), whose sum is σ = 71188740. Its totient is φ = 71139328.

The previous prime is 71164031. The next prime is 71164043. The reversal of 71164033 is 33046117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33046117 = 13 ⋅2542009.

It can be written as a sum of positive squares in 2 ways, for example, as 14493249 + 56670784 = 3807^2 + 7528^2 .

It is a cyclic number.

It is not a de Polignac number, because 71164033 - 2¹ = 71164031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71163989 and 71164007.

It is not an unprimeable number, because it can be changed into a prime (71164031) 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, 7360 + ... + 14017.

It is an arithmetic number, because the mean of its divisors is an integer number (17797185).

Almost surely, 2^71164033 is an apocalyptic number.

It is an amenable number.

71164033 is a deficient number, since it is larger than the sum of its proper divisors (24707).

71164033 is a wasteful number, since it uses less digits than its factorization.

71164033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24706.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 71164033 is about 8435.8777255245. The cubic root of 71164033 is about 414.4004173588.

The spelling of 71164033 in words is "seventy-one million, one hundred sixty-four thousand, thirty-three".