127552231 has 2 divisors, whose sum is σ = 127552232. Its totient is φ = 127552230.

The previous prime is 127552169. The next prime is 127552247. The reversal of 127552231 is 132255721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127552231 - 2¹¹ = 127550183 is a prime.

It is a super-2 number, since 2×127552231² = 32539143266154722, 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 127552231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127550231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63776115 + 63776116.

It is an arithmetic number, because the mean of its divisors is an integer number (63776116).

Almost surely, 2^127552231 is an apocalyptic number.

127552231 is a deficient number, since it is larger than the sum of its proper divisors (1).

127552231 is an equidigital number, since it uses as much as digits as its factorization.

127552231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 28.

The square root of 127552231 is about 11293.9023813738. The cubic root of 127552231 is about 503.3800733852.

The spelling of 127552231 in words is "one hundred twenty-seven million, five hundred fifty-two thousand, two hundred thirty-one".