1135559000 has 64 divisors (see below), whose sum is σ = 2663388000. Its totient is φ = 453168000.

The previous prime is 1135558999. The next prime is 1135559011. The reversal of 1135559000 is 9555311.

It is a happy number.

It is a congruent number.

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, 539951 + ... + 542049.

Almost surely, 2^1135559000 is an apocalyptic number.

1135559000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1135559000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331694000).

1135559000 is an abundant number, since it is smaller than the sum of its proper divisors (1527829000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1135559000 is a wasteful number, since it uses less digits than its factorization.

1135559000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661 (or 2647 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 29.

The square root of 1135559000 is about 33698.0563237704. The cubic root of 1135559000 is about 1043.2856516729.

The spelling of 1135559000 in words is "one billion, one hundred thirty-five million, five hundred fifty-nine thousand".