1144051986 has 32 divisors (see below), whose sum is σ = 2852702208. Its totient is φ = 297156240.

The previous prime is 1144051969. The next prime is 1144052017. The reversal of 1144051986 is 6891504411.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1237690 + ... + 1238613.

It is an arithmetic number, because the mean of its divisors is an integer number (89146944).

Almost surely, 2^1144051986 is an apocalyptic number.

1144051986 is an abundant number, since it is smaller than the sum of its proper divisors (1708650222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144051986 is a wasteful number, since it uses less digits than its factorization.

1144051986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476326.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1144051986 is about 33823.8375410006. The cubic root of 1144051986 is about 1045.8801482738.

The spelling of 1144051986 in words is "one billion, one hundred forty-four million, fifty-one thousand, nine hundred eighty-six".