1143197 has 8 divisors (see below), whose sum is σ = 1260480. Its totient is φ = 1028160.

The previous prime is 1143193. The next prime is 1143217. The reversal of 1143197 is 7913411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1143197 - 2² = 1143193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629 + ... + 1637.

It is an arithmetic number, because the mean of its divisors is an integer number (157560).

2^1143197 is an apocalyptic number.

It is an amenable number.

1143197 is a deficient number, since it is larger than the sum of its proper divisors (117283).

1143197 is a wasteful number, since it uses less digits than its factorization.

1143197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123.

The product of its digits is 756, while the sum is 26.

The square root of 1143197 is about 1069.2039094579. The cubic root of 1143197 is about 104.5619543643.

The spelling of 1143197 in words is "one million, one hundred forty-three thousand, one hundred ninety-seven".