71290127 has 2 divisors, whose sum is σ = 71290128. Its totient is φ = 71290126.

The previous prime is 71290099. The next prime is 71290139. The reversal of 71290127 is 72109217.

It is a strong prime.

It is an emirp because it is prime and its reverse (72109217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71290127 - 2⁸ = 71289871 is a prime.

It is a super-2 number, since 2×71290127² = 10164564415352258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71290127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71290187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35645063 + 35645064.

It is an arithmetic number, because the mean of its divisors is an integer number (35645064).

Almost surely, 2^71290127 is an apocalyptic number.

71290127 is a deficient number, since it is larger than the sum of its proper divisors (1).

71290127 is an equidigital number, since it uses as much as digits as its factorization.

71290127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 71290127 is about 8443.3480918413. The cubic root of 71290127 is about 414.6450286329.

It can be divided in two parts, 71290 and 127, that added together give a palindrome (71417).

The spelling of 71290127 in words is "seventy-one million, two hundred ninety thousand, one hundred twenty-seven".