1153599540 has 24 divisors (see below), whose sum is σ = 3230078880. Its totient is φ = 307626528.

The previous prime is 1153599539. The next prime is 1153599593. The reversal of 1153599540 is 459953511.

It is a junction number, because it is equal to n+sod(n) for n = 1153599492 and 1153599501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9613270 + ... + 9613389.

It is an arithmetic number, because the mean of its divisors is an integer number (134586620).

Almost surely, 2^1153599540 is an apocalyptic number.

1153599540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153599540 is an abundant number, since it is smaller than the sum of its proper divisors (2076479340).

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

1153599540 is a wasteful number, since it uses less digits than its factorization.

1153599540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19226671 (or 19226669 counting only the distinct ones).

The product of its (nonzero) digits is 121500, while the sum is 42.

The square root of 1153599540 is about 33964.6807728264. The cubic root of 1153599540 is about 1048.7815162497.

The spelling of 1153599540 in words is "one billion, one hundred fifty-three million, five hundred ninety-nine thousand, five hundred forty".