71068237 has 2 divisors, whose sum is σ = 71068238. Its totient is φ = 71068236.

The previous prime is 71068181. The next prime is 71068243. The reversal of 71068237 is 73286017.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66113161 + 4955076 = 8131^2 + 2226^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71068237 is a prime.

It is a super-3 number, since 3×71068237³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71068247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35534118 + 35534119.

It is an arithmetic number, because the mean of its divisors is an integer number (35534119).

Almost surely, 2^71068237 is an apocalyptic number.

It is an amenable number.

71068237 is a deficient number, since it is larger than the sum of its proper divisors (1).

71068237 is an equidigital number, since it uses as much as digits as its factorization.

71068237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 71068237 is about 8430.1979217572. The cubic root of 71068237 is about 414.2143883266.

The spelling of 71068237 in words is "seventy-one million, sixty-eight thousand, two hundred thirty-seven".