1136143 has 4 divisors (see below), whose sum is σ = 1195960. Its totient is φ = 1076328.

The previous prime is 1136129. The next prime is 1136147. The reversal of 1136143 is 3416311.

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

It is a cyclic number.

It is not a de Polignac number, because 1136143 - 2⁵ = 1136111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 59797 = 1136143 / (1 + 1 + 3 + 6 + 1 + 4 + 3).

It is a Duffinian number.

1136143 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1136143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136147) 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, 29880 + ... + 29917.

It is an arithmetic number, because the mean of its divisors is an integer number (298990).

2^1136143 is an apocalyptic number.

1136143 is a deficient number, since it is larger than the sum of its proper divisors (59817).

1136143 is an equidigital number, since it uses as much as digits as its factorization.

1136143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59816.

The product of its digits is 216, while the sum is 19.

The square root of 1136143 is about 1065.9000891266. The cubic root of 1136143 is about 104.3464469448.

The spelling of 1136143 in words is "one million, one hundred thirty-six thousand, one hundred forty-three".