1149000 has 64 divisors (see below), whose sum is σ = 3594240. Its totient is φ = 305600.

The previous prime is 1148999. The next prime is 1149007. The reversal of 1149000 is 9411.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1149007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2809 + ... + 3191.

It is an arithmetic number, because the mean of its divisors is an integer number (56160).

2^1149000 is an apocalyptic number.

1149000 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 1149000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1797120).

1149000 is an abundant number, since it is smaller than the sum of its proper divisors (2445240).

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

1149000 is a wasteful number, since it uses less digits than its factorization.

1149000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1149000 is about 1071.9141756689. The cubic root of 1149000 is about 104.7385786975.

The spelling of 1149000 in words is "one million, one hundred forty-nine thousand".