1145280286 has 16 divisors (see below), whose sum is σ = 1751477904. Its totient is φ = 561468544.

The previous prime is 1145280281. The next prime is 1145280287. The reversal of 1145280286 is 6820825411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145280281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235350 + ... + 240166.

It is an arithmetic number, because the mean of its divisors is an integer number (109467369).

Almost surely, 2^1145280286 is an apocalyptic number.

1145280286 is a deficient number, since it is larger than the sum of its proper divisors (606197618).

1145280286 is a wasteful number, since it uses less digits than its factorization.

1145280286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7115.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 1145280286 is about 33841.9899828601. The cubic root of 1145280286 is about 1046.2543139946.

The spelling of 1145280286 in words is "one billion, one hundred forty-five million, two hundred eighty thousand, two hundred eighty-six".