71151133 has 2 divisors, whose sum is σ = 71151134. Its totient is φ = 71151132.

The previous prime is 71151127. The next prime is 71151151. The reversal of 71151133 is 33115117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35784324 + 35366809 = 5982^2 + 5947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71151133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71151173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35575566 + 35575567.

It is an arithmetic number, because the mean of its divisors is an integer number (35575567).

Almost surely, 2^71151133 is an apocalyptic number.

It is an amenable number.

71151133 is a deficient number, since it is larger than the sum of its proper divisors (1).

71151133 is an equidigital number, since it uses as much as digits as its factorization.

71151133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 315, while the sum is 22.

The square root of 71151133 is about 8435.1130994196. The cubic root of 71151133 is about 414.3753762053.

The spelling of 71151133 in words is "seventy-one million, one hundred fifty-one thousand, one hundred thirty-three".