127916069 has 2 divisors, whose sum is σ = 127916070. Its totient is φ = 127916068.

The previous prime is 127916029. The next prime is 127916077. The reversal of 127916069 is 960619721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126855169 + 1060900 = 11263^2 + 1030^2 .

It is an emirp because it is prime and its reverse (960619721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127916069 - 2¹⁶ = 127850533 is a prime.

It is a super-2 number, since 2×127916069² = 32725041416825522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127916029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63958034 + 63958035.

It is an arithmetic number, because the mean of its divisors is an integer number (63958035).

Almost surely, 2^127916069 is an apocalyptic number.

It is an amenable number.

127916069 is a deficient number, since it is larger than the sum of its proper divisors (1).

127916069 is an equidigital number, since it uses as much as digits as its factorization.

127916069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 127916069 is about 11309.9986295313. The cubic root of 127916069 is about 503.8582433381.

The spelling of 127916069 in words is "one hundred twenty-seven million, nine hundred sixteen thousand, sixty-nine".