1135556890 has 32 divisors (see below), whose sum is σ = 2202754176. Its totient is φ = 418992960.

The previous prime is 1135556887. The next prime is 1135556909. The reversal of 1135556890 is 986555311.

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, 311619 + ... + 315241.

It is an arithmetic number, because the mean of its divisors is an integer number (68836068).

Almost surely, 2^1135556890 is an apocalyptic number.

1135556890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1135556890 is a deficient number, since it is larger than the sum of its proper divisors (1067197286).

1135556890 is a wasteful number, since it uses less digits than its factorization.

1135556890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6054.

The product of its (nonzero) digits is 162000, while the sum is 43.

The square root of 1135556890 is about 33698.0250163122. The cubic root of 1135556890 is about 1043.2850054907.

The spelling of 1135556890 in words is "one billion, one hundred thirty-five million, five hundred fifty-six thousand, eight hundred ninety".