1143145105 has 4 divisors (see below), whose sum is σ = 1371774132. Its totient is φ = 914516080.

The previous prime is 1143145061. The next prime is 1143145111. The reversal of 1143145105 is 5015413411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5015413411 = 907 ⋅5529673.

It can be written as a sum of positive squares in 2 ways, for example, as 276490384 + 866654721 = 16628^2 + 29439^2 .

It is not a de Polignac number, because 1143145105 - 2²⁷ = 1008927377 is a prime.

It is a super-2 number, since 2×1143145105² = 2613561462170922050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143145105.

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, 114314506 + ... + 114314515.

It is an arithmetic number, because the mean of its divisors is an integer number (342943533).

Almost surely, 2^1143145105 is an apocalyptic number.

It is an amenable number.

1143145105 is a deficient number, since it is larger than the sum of its proper divisors (228629027).

1143145105 is an equidigital number, since it uses as much as digits as its factorization.

1143145105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228629026.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1143145105 is about 33810.4289384208. The cubic root of 1143145105 is about 1045.6037215680.

Adding to 1143145105 its reverse (5015413411), we get a palindrome (6158558516).

The spelling of 1143145105 in words is "one billion, one hundred forty-three million, one hundred forty-five thousand, one hundred five".