1143169 has 6 divisors (see below), whose sum is σ = 1195586. Its totient is φ = 1092960.

The previous prime is 1143167. The next prime is 1143193. The reversal of 1143169 is 9613411.

It can be written as a sum of positive squares in only one way, i.e., 1024144 + 119025 = 1012^2 + 345^2 .

It is not a de Polignac number, because 1143169 - 2¹ = 1143167 is a prime.

It is a super-2 number, since 2×1143169² = 2613670725122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1143161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552 + ... + 1609.

2^1143169 is an apocalyptic number.

It is an amenable number.

1143169 is a deficient number, since it is larger than the sum of its proper divisors (52417).

1143169 is an equidigital number, since it uses as much as digits as its factorization.

1143169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207 (or 2184 counting only the distinct ones).

The product of its digits is 648, while the sum is 25.

The square root of 1143169 is about 1069.1908155236. The cubic root of 1143169 is about 104.5611006886.

The spelling of 1143169 in words is "one million, one hundred forty-three thousand, one hundred sixty-nine".