1143746 has 4 divisors (see below), whose sum is σ = 1715622. Its totient is φ = 571872.

The previous prime is 1143719. The next prime is 1143749. The reversal of 1143746 is 6473411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6473411 = 7 ⋅924773.

It can be written as a sum of positive squares in only one way, i.e., 931225 + 212521 = 965^2 + 461^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285935 + ... + 285938.

2^1143746 is an apocalyptic number.

1143746 is a deficient number, since it is larger than the sum of its proper divisors (571876).

1143746 is an equidigital number, since it uses as much as digits as its factorization.

1143746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571875.

The product of its digits is 2016, while the sum is 26.

The square root of 1143746 is about 1069.4606117104. The cubic root of 1143746 is about 104.5786896912.

The spelling of 1143746 in words is "one million, one hundred forty-three thousand, seven hundred forty-six".