71530127 has 2 divisors, whose sum is σ = 71530128. Its totient is φ = 71530126.

The previous prime is 71530111. The next prime is 71530133. The reversal of 71530127 is 72103517.

It is a strong prime.

It is an emirp because it is prime and its reverse (72103517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71530127 - 2⁴ = 71530111 is a prime.

It is a super-2 number, since 2×71530127² = 10233118137272258, 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 = 71530096 and 71530105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71530177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35765063 + 35765064.

It is an arithmetic number, because the mean of its divisors is an integer number (35765064).

Almost surely, 2^71530127 is an apocalyptic number.

71530127 is a deficient number, since it is larger than the sum of its proper divisors (1).

71530127 is an equidigital number, since it uses as much as digits as its factorization.

71530127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 71530127 is about 8457.5485218827. The cubic root of 71530127 is about 415.1098117495.

The spelling of 71530127 in words is "seventy-one million, five hundred thirty thousand, one hundred twenty-seven".