1143450 has 144 divisors (see below), whose sum is σ = 3958080. Its totient is φ = 237600.

The previous prime is 1143433. The next prime is 1143469. The reversal of 1143450 is 543411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 103945 + ... + 103955.

2^1143450 is an apocalyptic number.

1143450 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 1143450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1979040).

1143450 is an abundant number, since it is smaller than the sum of its proper divisors (2814630).

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

1143450 is a wasteful number, since it uses less digits than its factorization.

1143450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1143450 is about 1069.3222152373. The cubic root of 1143450 is about 104.5696673025.

Adding to 1143450 its reverse (543411), we get a palindrome (1686861).

The spelling of 1143450 in words is "one million, one hundred forty-three thousand, four hundred fifty".