1155323567 has 2 divisors, whose sum is σ = 1155323568. Its totient is φ = 1155323566.

The previous prime is 1155323509. The next prime is 1155323569. The reversal of 1155323567 is 7653235511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1155323567 - 2⁶ = 1155323503 is a prime.

Together with 1155323569, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1155323567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155323569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577661783 + 577661784.

It is an arithmetic number, because the mean of its divisors is an integer number (577661784).

Almost surely, 2^1155323567 is an apocalyptic number.

1155323567 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155323567 is an equidigital number, since it uses as much as digits as its factorization.

1155323567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94500, while the sum is 38.

The square root of 1155323567 is about 33990.0510002559. The cubic root of 1155323567 is about 1049.3037158521.

The spelling of 1155323567 in words is "one billion, one hundred fifty-five million, three hundred twenty-three thousand, five hundred sixty-seven".