1051613791 has 2 divisors, whose sum is σ = 1051613792. Its totient is φ = 1051613790.

The previous prime is 1051613779. The next prime is 1051613867. The reversal of 1051613791 is 1973161501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1051613791 - 2⁷ = 1051613663 is a prime.

It is a super-2 number, since 2×1051613791² = 2211783130842783362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051613191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525806895 + 525806896.

It is an arithmetic number, because the mean of its divisors is an integer number (525806896).

Almost surely, 2^1051613791 is an apocalyptic number.

1051613791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051613791 is an equidigital number, since it uses as much as digits as its factorization.

1051613791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 1051613791 is about 32428.5952671404. The cubic root of 1051613791 is about 1016.9168049689.

The spelling of 1051613791 in words is "one billion, fifty-one million, six hundred thirteen thousand, seven hundred ninety-one".