1143386065 has 8 divisors (see below), whose sum is σ = 1405528488. Its totient is φ = 892398720.

The previous prime is 1143386033. The next prime is 1143386071. The reversal of 1143386065 is 5606833411.

It can be written as a sum of positive squares in 4 ways, for example, as 99062209 + 1044323856 = 9953^2 + 32316^2 .

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

It is not a de Polignac number, because 1143386065 - 2⁵ = 1143386033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2788542 + ... + 2788951.

It is an arithmetic number, because the mean of its divisors is an integer number (175691061).

Almost surely, 2^1143386065 is an apocalyptic number.

It is an amenable number.

1143386065 is a deficient number, since it is larger than the sum of its proper divisors (262142423).

1143386065 is an equidigital number, since it uses as much as digits as its factorization.

1143386065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5577539.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 1143386065 is about 33813.9921482217. The cubic root of 1143386065 is about 1045.6771829251.

The spelling of 1143386065 in words is "one billion, one hundred forty-three million, three hundred eighty-six thousand, sixty-five".