1155703313 has 2 divisors, whose sum is σ = 1155703314. Its totient is φ = 1155703312.

The previous prime is 1155703309. The next prime is 1155703327. The reversal of 1155703313 is 3133075511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 700819729 + 454883584 = 26473^2 + 21328^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155703313 - 2² = 1155703309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1155703013) 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, 577851656 + 577851657.

It is an arithmetic number, because the mean of its divisors is an integer number (577851657).

Almost surely, 2^1155703313 is an apocalyptic number.

It is an amenable number.

1155703313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155703313 is an equidigital number, since it uses as much as digits as its factorization.

1155703313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4725, while the sum is 29.

The square root of 1155703313 is about 33995.6366759030. The cubic root of 1155703313 is about 1049.4186692875.

Adding to 1155703313 its reverse (3133075511), we get a palindrome (4288778824).

The spelling of 1155703313 in words is "one billion, one hundred fifty-five million, seven hundred three thousand, three hundred thirteen".