1057698127 has 2 divisors, whose sum is σ = 1057698128. Its totient is φ = 1057698126.

The previous prime is 1057698091. The next prime is 1057698181. The reversal of 1057698127 is 7218967501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1057698127 - 2⁷ = 1057697999 is a prime.

It is a super-2 number, since 2×1057698127² = 2237450655718616258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1057698227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528849063 + 528849064.

It is an arithmetic number, because the mean of its divisors is an integer number (528849064).

Almost surely, 2^1057698127 is an apocalyptic number.

1057698127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057698127 is an equidigital number, since it uses as much as digits as its factorization.

1057698127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 46.

The square root of 1057698127 is about 32522.2712460246. The cubic root of 1057698127 is about 1018.8742311672.

The spelling of 1057698127 in words is "one billion, fifty-seven million, six hundred ninety-eight thousand, one hundred twenty-seven".