1155942995 has 16 divisors (see below), whose sum is σ = 1461227040. Its totient is φ = 875430144.

The previous prime is 1155942989. The next prime is 1155943021. The reversal of 1155942995 is 5992495511.

It is a cyclic number.

It is not a de Polignac number, because 1155942995 - 2⁴ = 1155942979 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151799 + ... + 159231.

It is an arithmetic number, because the mean of its divisors is an integer number (91326690).

Almost surely, 2^1155942995 is an apocalyptic number.

1155942995 is a deficient number, since it is larger than the sum of its proper divisors (305284045).

1155942995 is a wasteful number, since it uses less digits than its factorization.

1155942995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9094.

The product of its digits is 729000, while the sum is 50.

The square root of 1155942995 is about 33999.1616808415. The cubic root of 1155942995 is about 1049.4912107944.

The spelling of 1155942995 in words is "one billion, one hundred fifty-five million, nine hundred forty-two thousand, nine hundred ninety-five".