1155889067 has 2 divisors, whose sum is σ = 1155889068. Its totient is φ = 1155889066.

The previous prime is 1155889043. The next prime is 1155889069. The reversal of 1155889067 is 7609885511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1155889067 - 2¹² = 1155884971 is a prime.

Together with 1155889069, 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 (1155889069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577944533 + 577944534.

It is an arithmetic number, because the mean of its divisors is an integer number (577944534).

Almost surely, 2^1155889067 is an apocalyptic number.

1155889067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155889067 is an equidigital number, since it uses as much as digits as its factorization.

1155889067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 50.

The square root of 1155889067 is about 33998.3685932134. The cubic root of 1155889067 is about 1049.4748899659.

The spelling of 1155889067 in words is "one billion, one hundred fifty-five million, eight hundred eighty-nine thousand, sixty-seven".