1151635361 has 2 divisors, whose sum is σ = 1151635362. Its totient is φ = 1151635360.

The previous prime is 1151635351. The next prime is 1151635363. The reversal of 1151635361 is 1635361511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 660747025 + 490888336 = 25705^2 + 22156^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151635361 - 2¹⁸ = 1151373217 is a prime.

Together with 1151635363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1151635363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575817680 + 575817681.

It is an arithmetic number, because the mean of its divisors is an integer number (575817681).

Almost surely, 2^1151635361 is an apocalyptic number.

It is an amenable number.

1151635361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151635361 is an equidigital number, since it uses as much as digits as its factorization.

1151635361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 32.

The square root of 1151635361 is about 33935.7534320368. The cubic root of 1151635361 is about 1048.1859413218.

Adding to 1151635361 its reverse (1635361511), we get a palindrome (2786996872).

The spelling of 1151635361 in words is "one billion, one hundred fifty-one million, six hundred thirty-five thousand, three hundred sixty-one".