71980127 has 2 divisors, whose sum is σ = 71980128. Its totient is φ = 71980126.

The previous prime is 71980123. The next prime is 71980147. The reversal of 71980127 is 72108917.

71980127 is nontrivially palindromic in base 14.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71980127 - 2² = 71980123 is a prime.

It is a super-2 number, since 2×71980127² = 10362277365872258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71980121) 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, 35990063 + 35990064.

It is an arithmetic number, because the mean of its divisors is an integer number (35990064).

Almost surely, 2^71980127 is an apocalyptic number.

71980127 is a deficient number, since it is larger than the sum of its proper divisors (1).

71980127 is an equidigital number, since it uses as much as digits as its factorization.

71980127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 71980127 is about 8484.1102656672. The cubic root of 71980127 is about 415.9784856200.

The spelling of 71980127 in words is "seventy-one million, nine hundred eighty thousand, one hundred twenty-seven".