1151445313 has 2 divisors, whose sum is σ = 1151445314. Its totient is φ = 1151445312.

The previous prime is 1151445311. The next prime is 1151445331. The reversal of 1151445313 is 3135441511.

Together with next prime (1151445331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1129430449 + 22014864 = 33607^2 + 4692^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151445313 - 2¹ = 1151445311 is a prime.

Together with 1151445311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1151445311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575722656 + 575722657.

It is an arithmetic number, because the mean of its divisors is an integer number (575722657).

Almost surely, 2^1151445313 is an apocalyptic number.

It is an amenable number.

1151445313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151445313 is an equidigital number, since it uses as much as digits as its factorization.

1151445313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 28.

The square root of 1151445313 is about 33932.9532018656. The cubic root of 1151445313 is about 1048.1282793779.

Adding to 1151445313 its reverse (3135441511), we get a palindrome (4286886824).

The spelling of 1151445313 in words is "one billion, one hundred fifty-one million, four hundred forty-five thousand, three hundred thirteen".