1056941999 has 2 divisors, whose sum is σ = 1056942000. Its totient is φ = 1056941998.

The previous prime is 1056941987. The next prime is 1056942001. The reversal of 1056941999 is 9991496501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056941999 is a prime.

It is a super-2 number, since 2×1056941999² = 2234252778500232002, which contains 22 as substring.

Together with 1056942001, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1056941999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056941909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528470999 + 528471000.

It is an arithmetic number, because the mean of its divisors is an integer number (528471000).

Almost surely, 2^1056941999 is an apocalyptic number.

1056941999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056941999 is an equidigital number, since it uses as much as digits as its factorization.

1056941999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787320, while the sum is 53.

The square root of 1056941999 is about 32510.6443953361. The cubic root of 1056941999 is about 1018.6313821068.

The spelling of 1056941999 in words is "one billion, fifty-six million, nine hundred forty-one thousand, nine hundred ninety-nine".