1149500 has 72 divisors (see below), whose sum is σ = 2904720. Its totient is φ = 396000.

The previous prime is 1149493. The next prime is 1149503. The reversal of 1149500 is 59411.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60491 + ... + 60509.

2^1149500 is an apocalyptic number.

1149500 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 1149500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1452360).

1149500 is an abundant number, since it is smaller than the sum of its proper divisors (1755220).

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

1149500 is a wasteful number, since it uses less digits than its factorization.

1149500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1149500 is about 1072.1473779290. The cubic root of 1149500 is about 104.7537692095.

1149500 divided by its sum of digits (20) gives a palindrome (57475).

The spelling of 1149500 in words is "one million, one hundred forty-nine thousand, five hundred".