127228331 has 2 divisors, whose sum is σ = 127228332. Its totient is φ = 127228330.

The previous prime is 127228327. The next prime is 127228333. The reversal of 127228331 is 133822721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127228331 - 2² = 127228327 is a prime.

It is a super-2 number, since 2×127228331² = 32374096418091122, which contains 22 as substring.

Together with 127228333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 127228294 and 127228303.

It is not a weakly prime, because it can be changed into another prime (127228333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63614165 + 63614166.

It is an arithmetic number, because the mean of its divisors is an integer number (63614166).

Almost surely, 2^127228331 is an apocalyptic number.

127228331 is a deficient number, since it is larger than the sum of its proper divisors (1).

127228331 is an equidigital number, since it uses as much as digits as its factorization.

127228331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 127228331 is about 11279.5536702478. The cubic root of 127228331 is about 502.9536258327.

The spelling of 127228331 in words is "one hundred twenty-seven million, two hundred twenty-eight thousand, three hundred thirty-one".