71164031 has 2 divisors, whose sum is σ = 71164032. Its totient is φ = 71164030.

The previous prime is 71164021. The next prime is 71164043. The reversal of 71164031 is 13046117.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71164031 - 2¹⁰ = 71163007 is a prime.

It is a super-2 number, since 2×71164031² = 10128638616337922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71163988 and 71164006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71164021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35582015 + 35582016.

It is an arithmetic number, because the mean of its divisors is an integer number (35582016).

Almost surely, 2^71164031 is an apocalyptic number.

71164031 is a deficient number, since it is larger than the sum of its proper divisors (1).

71164031 is an equidigital number, since it uses as much as digits as its factorization.

71164031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 71164031 is about 8435.8776069832. The cubic root of 71164031 is about 414.4004134767.

The spelling of 71164031 in words is "seventy-one million, one hundred sixty-four thousand, thirty-one".