1152990 has 48 divisors (see below), whose sum is σ = 3133728. Its totient is φ = 293568.

The previous prime is 1152989. The next prime is 1152997. The reversal of 1152990 is 992511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1792 + ... + 2348.

It is an arithmetic number, because the mean of its divisors is an integer number (65286).

2^1152990 is an apocalyptic number.

1152990 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 1152990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566864).

1152990 is an abundant number, since it is smaller than the sum of its proper divisors (1980738).

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

1152990 is a wasteful number, since it uses less digits than its factorization.

1152990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 1152990 is about 1073.7737191792. The cubic root of 1152990 is about 104.8596764988.

The spelling of 1152990 in words is "one million, one hundred fifty-two thousand, nine hundred ninety".