1143574 has 8 divisors (see below), whose sum is σ = 1736280. Its totient is φ = 564898.

The previous prime is 1143563. The next prime is 1143577. The reversal of 1143574 is 4753411.

It is a super-2 number, since 2×1143574² = 2615522986952, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13737 + ... + 13819.

It is an arithmetic number, because the mean of its divisors is an integer number (217035).

2^1143574 is an apocalyptic number.

1143574 is a deficient number, since it is larger than the sum of its proper divisors (592706).

1143574 is an frugal number, since it uses more digits than its factorization.

1143574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 85 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 1143574 is about 1069.3801943182. The cubic root of 1143574 is about 104.5734471413.

Adding to 1143574 its reverse (4753411), we get a palindrome (5896985).

The spelling of 1143574 in words is "one million, one hundred forty-three thousand, five hundred seventy-four".