1061394791 has 2 divisors, whose sum is σ = 1061394792. Its totient is φ = 1061394790.

The previous prime is 1061394773. The next prime is 1061394793. The reversal of 1061394791 is 1974931601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1061394791 - 2¹⁸ = 1061132647 is a prime.

It is a super-2 number, since 2×1061394791² = 2253117804723867362, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1061394793, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1061394793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530697395 + 530697396.

It is an arithmetic number, because the mean of its divisors is an integer number (530697396).

Almost surely, 2^1061394791 is an apocalyptic number.

1061394791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061394791 is an equidigital number, since it uses as much as digits as its factorization.

1061394791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 1061394791 is about 32579.0544829036. The cubic root of 1061394791 is about 1020.0598423816.

The spelling of 1061394791 in words is "one billion, sixty-one million, three hundred ninety-four thousand, seven hundred ninety-one".