1155013207 has 2 divisors, whose sum is σ = 1155013208. Its totient is φ = 1155013206.

The previous prime is 1155013187. The next prime is 1155013229. The reversal of 1155013207 is 7023105511.

It is a weak prime.

It is an emirp because it is prime and its reverse (7023105511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1155013207 - 2²³ = 1146624599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155013007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577506603 + 577506604.

It is an arithmetic number, because the mean of its divisors is an integer number (577506604).

Almost surely, 2^1155013207 is an apocalyptic number.

1155013207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155013207 is an equidigital number, since it uses as much as digits as its factorization.

1155013207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 1155013207 is about 33985.4852400256. The cubic root of 1155013207 is about 1049.2097476409.

Adding to 1155013207 its reverse (7023105511), we get a palindrome (8178118718).

The spelling of 1155013207 in words is "one billion, one hundred fifty-five million, thirteen thousand, two hundred seven".