1156052369 has 2 divisors, whose sum is σ = 1156052370. Its totient is φ = 1156052368.

The previous prime is 1156052351. The next prime is 1156052393. The reversal of 1156052369 is 9632506511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 814246225 + 341806144 = 28535^2 + 18488^2 .

It is an emirp because it is prime and its reverse (9632506511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1156052369 - 2¹² = 1156048273 is a prime.

It is a super-2 number, since 2×1156052369² = 2672914159741024322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1156052399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578026184 + 578026185.

It is an arithmetic number, because the mean of its divisors is an integer number (578026185).

Almost surely, 2^1156052369 is an apocalyptic number.

It is an amenable number.

1156052369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156052369 is an equidigital number, since it uses as much as digits as its factorization.

1156052369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 1156052369 is about 34000.7701236310. The cubic root of 1156052369 is about 1049.5243103019.

The spelling of 1156052369 in words is "one billion, one hundred fifty-six million, fifty-two thousand, three hundred sixty-nine".