1051345291 has 2 divisors, whose sum is σ = 1051345292. Its totient is φ = 1051345290.

The previous prime is 1051345289. The next prime is 1051345349. The reversal of 1051345291 is 1925431501.

1051345291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1051345291 - 2¹ = 1051345289 is a prime.

It is a super-2 number, since 2×1051345291² = 2210653841815749362, which contains 22 as substring.

Together with 1051345289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1051345231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525672645 + 525672646.

It is an arithmetic number, because the mean of its divisors is an integer number (525672646).

Almost surely, 2^1051345291 is an apocalyptic number.

1051345291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051345291 is an equidigital number, since it uses as much as digits as its factorization.

1051345291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1051345291 is about 32424.4551380590. The cubic root of 1051345291 is about 1016.8302505685.

Adding to 1051345291 its reverse (1925431501), we get a palindrome (2976776792).

The spelling of 1051345291 in words is "one billion, fifty-one million, three hundred forty-five thousand, two hundred ninety-one".