1143622 has 4 divisors (see below), whose sum is σ = 1715436. Its totient is φ = 571810.

The previous prime is 1143619. The next prime is 1143643. The reversal of 1143622 is 2263411.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1143622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285904 + ... + 285907.

It is an arithmetic number, because the mean of its divisors is an integer number (428859).

2^1143622 is an apocalyptic number.

1143622 is a deficient number, since it is larger than the sum of its proper divisors (571814).

1143622 is an equidigital number, since it uses as much as digits as its factorization.

1143622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571813.

The product of its digits is 288, while the sum is 19.

The square root of 1143622 is about 1069.4026369895. The cubic root of 1143622 is about 104.5749102313.

The spelling of 1143622 in words is "one million, one hundred forty-three thousand, six hundred twenty-two".