1144087986 has 16 divisors (see below), whose sum is σ = 2290709664. Its totient is φ = 380940384.

The previous prime is 1144087979. The next prime is 1144087993. The reversal of 1144087986 is 6897804411.

It is an interprime number because it is at equal distance from previous prime (1144087979) and next prime (1144087993).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99675 + ... + 110558.

It is an arithmetic number, because the mean of its divisors is an integer number (143169354).

Almost surely, 2^1144087986 is an apocalyptic number.

1144087986 is an abundant number, since it is smaller than the sum of its proper divisors (1146621678).

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

1144087986 is a wasteful number, since it uses less digits than its factorization.

1144087986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211145.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 1144087986 is about 33824.3697058792. The cubic root of 1144087986 is about 1045.8911184310.

The spelling of 1144087986 in words is "one billion, one hundred forty-four million, eighty-seven thousand, nine hundred eighty-six".