71136073 has 2 divisors, whose sum is σ = 71136074. Its totient is φ = 71136072.

The previous prime is 71136071. The next prime is 71136113. The reversal of 71136073 is 37063117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52012944 + 19123129 = 7212^2 + 4373^2 .

It is a cyclic number.

It is not a de Polignac number, because 71136073 - 2¹ = 71136071 is a prime.

It is a super-2 number, since 2×71136073² = 10120681763722658, which contains 22 as substring.

Together with 71136071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71136071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35568036 + 35568037.

It is an arithmetic number, because the mean of its divisors is an integer number (35568037).

Almost surely, 2^71136073 is an apocalyptic number.

It is an amenable number.

71136073 is a deficient number, since it is larger than the sum of its proper divisors (1).

71136073 is an equidigital number, since it uses as much as digits as its factorization.

71136073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 71136073 is about 8434.2203551958. The cubic root of 71136073 is about 414.3461382848.

The spelling of 71136073 in words is "seventy-one million, one hundred thirty-six thousand, seventy-three".