71236133 has 4 divisors (see below), whose sum is σ = 71253120. Its totient is φ = 71219148.

The previous prime is 71236127. The next prime is 71236153. The reversal of 71236133 is 33163217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 33163217 = 23 ⋅1441879.

It is a cyclic number.

It is not a de Polignac number, because 71236133 - 2⁸ = 71235877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71236153) 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, 2828 + ... + 12266.

It is an arithmetic number, because the mean of its divisors is an integer number (17813280).

Almost surely, 2^71236133 is an apocalyptic number.

It is an amenable number.

71236133 is a deficient number, since it is larger than the sum of its proper divisors (16987).

71236133 is an equidigital number, since it uses as much as digits as its factorization.

71236133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16986.

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

The square root of 71236133 is about 8440.1500579077. The cubic root of 71236133 is about 414.5403203599.

The spelling of 71236133 in words is "seventy-one million, two hundred thirty-six thousand, one hundred thirty-three".