1145281886 has 24 divisors (see below), whose sum is σ = 2072121840. Its totient is φ = 464999616.

The previous prime is 1145281871. The next prime is 1145281927. The reversal of 1145281886 is 6881825411.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108251 + ... + 118358.

It is an arithmetic number, because the mean of its divisors is an integer number (86338410).

Almost surely, 2^1145281886 is an apocalyptic number.

1145281886 is a deficient number, since it is larger than the sum of its proper divisors (926839954).

1145281886 is a wasteful number, since it uses less digits than its factorization.

1145281886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226656 (or 226637 counting only the distinct ones).

The product of its digits is 122880, while the sum is 44.

The square root of 1145281886 is about 33842.0136221236. The cubic root of 1145281886 is about 1046.2548012133.

The spelling of 1145281886 in words is "one billion, one hundred forty-five million, two hundred eighty-one thousand, eight hundred eighty-six".