981430127 has 2 divisors, whose sum is σ = 981430128. Its totient is φ = 981430126.

The previous prime is 981430117. The next prime is 981430157. The reversal of 981430127 is 721034189.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 981430127 - 2⁸ = 981429871 is a prime.

It is a super-2 number, since 2×981430127² = 1926410188366472258, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (981430117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490715063 + 490715064.

It is an arithmetic number, because the mean of its divisors is an integer number (490715064).

Almost surely, 2^981430127 is an apocalyptic number.

981430127 is a deficient number, since it is larger than the sum of its proper divisors (1).

981430127 is an equidigital number, since it uses as much as digits as its factorization.

981430127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 981430127 is about 31327.7852233445. The cubic root of 981430127 is about 993.7713265099.

The spelling of 981430127 in words is "nine hundred eighty-one million, four hundred thirty thousand, one hundred twenty-seven".