1155889967 has 2 divisors, whose sum is σ = 1155889968. Its totient is φ = 1155889966.

The previous prime is 1155889951. The next prime is 1155889979. The reversal of 1155889967 is 7699885511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1155889967 - 2⁴ = 1155889951 is a prime.

It is a super-2 number, since 2×1155889967² = 2672163231622522178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155889067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577944983 + 577944984.

It is an arithmetic number, because the mean of its divisors is an integer number (577944984).

Almost surely, 2^1155889967 is an apocalyptic number.

1155889967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155889967 is an equidigital number, since it uses as much as digits as its factorization.

1155889967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 59.

The square root of 1155889967 is about 33998.3818291400. The cubic root of 1155889967 is about 1049.4751623470.

The spelling of 1155889967 in words is "one billion, one hundred fifty-five million, eight hundred eighty-nine thousand, nine hundred sixty-seven".