1155641086 has 16 divisors (see below), whose sum is σ = 1740690000. Its totient is φ = 575417088.

The previous prime is 1155641063. The next prime is 1155641087. The reversal of 1155641086 is 6801465511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155641087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610830 + ... + 612718.

It is an arithmetic number, because the mean of its divisors is an integer number (108793125).

Almost surely, 2^1155641086 is an apocalyptic number.

1155641086 is a deficient number, since it is larger than the sum of its proper divisors (585048914).

1155641086 is a wasteful number, since it uses less digits than its factorization.

1155641086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 1155641086 is about 33994.7214431888. The cubic root of 1155641086 is about 1049.3998341918.

The spelling of 1155641086 in words is "one billion, one hundred fifty-five million, six hundred forty-one thousand, eighty-six".