127274891 has 2 divisors, whose sum is σ = 127274892. Its totient is φ = 127274890.

The previous prime is 127274837. The next prime is 127274911. The reversal of 127274891 is 198472721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127274891 - 2¹⁴ = 127258507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (127273891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63637445 + 63637446.

It is an arithmetic number, because the mean of its divisors is an integer number (63637446).

Almost surely, 2^127274891 is an apocalyptic number.

127274891 is a deficient number, since it is larger than the sum of its proper divisors (1).

127274891 is an equidigital number, since it uses as much as digits as its factorization.

127274891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 41.

The square root of 127274891 is about 11281.6173929096. The cubic root of 127274891 is about 503.0149713538.

The spelling of 127274891 in words is "one hundred twenty-seven million, two hundred seventy-four thousand, eight hundred ninety-one".