127553117 has 2 divisors, whose sum is σ = 127553118. Its totient is φ = 127553116.

The previous prime is 127553113. The next prime is 127553141. The reversal of 127553117 is 711355721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126652516 + 900601 = 11254^2 + 949^2 .

It is an emirp because it is prime and its reverse (711355721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127553117 - 2² = 127553113 is a prime.

It is a Chen prime.

It is equal to p_7247075 and since 127553117 and 7247075 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127553113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63776558 + 63776559.

It is an arithmetic number, because the mean of its divisors is an integer number (63776559).

Almost surely, 2^127553117 is an apocalyptic number.

It is an amenable number.

127553117 is a deficient number, since it is larger than the sum of its proper divisors (1).

127553117 is an equidigital number, since it uses as much as digits as its factorization.

127553117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7350, while the sum is 32.

The square root of 127553117 is about 11293.9416060116. The cubic root of 127553117 is about 503.3812389043.

The spelling of 127553117 in words is "one hundred twenty-seven million, five hundred fifty-three thousand, one hundred seventeen".