281080126 has 4 divisors (see below), whose sum is σ = 421620192. Its totient is φ = 140540062.

The previous prime is 281080117. The next prime is 281080141. The reversal of 281080126 is 621080182.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 281080094 and 281080103.

It is a congruent 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 as a sum of consecutive naturals, namely, 70270030 + ... + 70270033.

It is an arithmetic number, because the mean of its divisors is an integer number (105405048).

Almost surely, 2^281080126 is an apocalyptic number.

281080126 is a deficient number, since it is larger than the sum of its proper divisors (140540066).

281080126 is a wasteful number, since it uses less digits than its factorization.

281080126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140540065.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 281080126 is about 16765.4444021028. Note that the first 4 decimals coincide. The cubic root of 281080126 is about 655.0534121120.

The spelling of 281080126 in words is "two hundred eighty-one million, eighty thousand, one hundred twenty-six".