1057994911 has 2 divisors, whose sum is σ = 1057994912. Its totient is φ = 1057994910.

The previous prime is 1057994893. The next prime is 1057994981. The reversal of 1057994911 is 1194997501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1057994911 - 2¹³ = 1057986719 is a prime.

It is a super-2 number, since 2×1057994911² = 2238706463403795842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1057994981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528997455 + 528997456.

It is an arithmetic number, because the mean of its divisors is an integer number (528997456).

Almost surely, 2^1057994911 is an apocalyptic number.

1057994911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057994911 is an equidigital number, since it uses as much as digits as its factorization.

1057994911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 46.

The square root of 1057994911 is about 32526.8337069565. The cubic root of 1057994911 is about 1018.9695190015.

The spelling of 1057994911 in words is "one billion, fifty-seven million, nine hundred ninety-four thousand, nine hundred eleven".