280142612 has 12 divisors (see below), whose sum is σ = 516052320. Its totient is φ = 132699096.

The previous prime is 280142591. The next prime is 280142623. The reversal of 280142612 is 216241082.

It is a happy number.

280142612 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1842968 + ... + 1843119.

It is an arithmetic number, because the mean of its divisors is an integer number (43004360).

Almost surely, 2^280142612 is an apocalyptic number.

It is an amenable number.

280142612 is a deficient number, since it is larger than the sum of its proper divisors (235909708).

280142612 is a wasteful number, since it uses less digits than its factorization.

280142612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686110 (or 3686108 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 280142612 is about 16737.4613367739. The cubic root of 280142612 is about 654.3243130214.

Adding to 280142612 its reverse (216241082), we get a palindrome (496383694).

The spelling of 280142612 in words is "two hundred eighty million, one hundred forty-two thousand, six hundred twelve".