1143109412 has 12 divisors (see below), whose sum is σ = 2000958876. Its totient is φ = 571406880.

The previous prime is 1143109403. The next prime is 1143109421. The reversal of 1143109412 is 2149013411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1143109403) and next prime (1143109421).

It can be written as a sum of positive squares in 2 ways, for example, as 270734116 + 872375296 = 16454^2 + 29536^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18539 + ... + 51282.

It is an arithmetic number, because the mean of its divisors is an integer number (166746573).

Almost surely, 2^1143109412 is an apocalyptic number.

It is an amenable number.

1143109412 is a deficient number, since it is larger than the sum of its proper divisors (857849464).

1143109412 is a wasteful number, since it uses less digits than its factorization.

1143109412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73918 (or 73916 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1143109412 is about 33809.9010942061. The cubic root of 1143109412 is about 1045.5928389828.

The spelling of 1143109412 in words is "one billion, one hundred forty-three million, one hundred nine thousand, four hundred twelve".