1150521090 has 64 divisors (see below), whose sum is σ = 2836753920. Its totient is φ = 298460160.

The previous prime is 1150521083. The next prime is 1150521091. The reversal of 1150521090 is 901250511.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1150521090.

It is not an unprimeable number, because it can be changed into a prime (1150521091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 501927 + ... + 504213.

It is an arithmetic number, because the mean of its divisors is an integer number (44324280).

Almost surely, 2^1150521090 is an apocalyptic number.

1150521090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1150521090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1418376960).

1150521090 is an abundant number, since it is smaller than the sum of its proper divisors (1686232830).

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

1150521090 is a wasteful number, since it uses less digits than its factorization.

1150521090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747.

The product of its (nonzero) digits is 450, while the sum is 24.

The square root of 1150521090 is about 33919.3320983772. The cubic root of 1150521090 is about 1047.8477729139.

The spelling of 1150521090 in words is "one billion, one hundred fifty million, five hundred twenty-one thousand, ninety".