1151009580 has 96 divisors (see below), whose sum is σ = 3707827200. Its totient is φ = 261331200.

The previous prime is 1151009543. The next prime is 1151009597. The reversal of 1151009580 is 859001511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54346 + ... + 72494.

It is an arithmetic number, because the mean of its divisors is an integer number (38623200).

Almost surely, 2^1151009580 is an apocalyptic number.

1151009580 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 1151009580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1853913600).

1151009580 is an abundant number, since it is smaller than the sum of its proper divisors (2556817620).

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

1151009580 is a wasteful number, since it uses less digits than its factorization.

1151009580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18319 (or 18317 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 30.

The square root of 1151009580 is about 33926.5320951022. The cubic root of 1151009580 is about 1047.9960508660.

The spelling of 1151009580 in words is "one billion, one hundred fifty-one million, nine thousand, five hundred eighty".