127139027 has 2 divisors, whose sum is σ = 127139028. Its totient is φ = 127139026.

The previous prime is 127139011. The next prime is 127139059. The reversal of 127139027 is 720931721.

It is an a-pointer prime, because the next prime (127139059) can be obtained adding 127139027 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127139027 - 2⁴ = 127139011 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 127138984 and 127139002.

It is not a weakly prime, because it can be changed into another prime (127139227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63569513 + 63569514.

It is an arithmetic number, because the mean of its divisors is an integer number (63569514).

Almost surely, 2^127139027 is an apocalyptic number.

127139027 is a deficient number, since it is larger than the sum of its proper divisors (1).

127139027 is an equidigital number, since it uses as much as digits as its factorization.

127139027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 127139027 is about 11275.5943080620. The cubic root of 127139027 is about 502.8359206973.

The spelling of 127139027 in words is "one hundred twenty-seven million, one hundred thirty-nine thousand, twenty-seven".