1061191843 has 2 divisors, whose sum is σ = 1061191844. Its totient is φ = 1061191842.

The previous prime is 1061191841. The next prime is 1061191847. The reversal of 1061191843 is 3481911601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1061191843 - 2¹ = 1061191841 is a prime.

It is a super-2 number, since 2×1061191843² = 2252256255299473298, which contains 22 as substring.

Together with 1061191841, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1061191799 and 1061191808.

It is not a weakly prime, because it can be changed into another prime (1061191841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530595921 + 530595922.

It is an arithmetic number, because the mean of its divisors is an integer number (530595922).

Almost surely, 2^1061191843 is an apocalyptic number.

1061191843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061191843 is an equidigital number, since it uses as much as digits as its factorization.

1061191843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 1061191843 is about 32575.9396334166. The cubic root of 1061191843 is about 1019.9948234391.

The spelling of 1061191843 in words is "one billion, sixty-one million, one hundred ninety-one thousand, eight hundred forty-three".