281096042 has 4 divisors (see below), whose sum is σ = 421644066. Its totient is φ = 140548020.

The previous prime is 281095979. The next prime is 281096059. The reversal of 281096042 is 240690182.

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

It can be written as a sum of positive squares in only one way, i.e., 242767561 + 38328481 = 15581^2 + 6191^2 .

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, 70274009 + ... + 70274012.

Almost surely, 2^281096042 is an apocalyptic number.

281096042 is a deficient number, since it is larger than the sum of its proper divisors (140548024).

281096042 is a wasteful number, since it uses less digits than its factorization.

281096042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140548023.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 281096042 is about 16765.9190621928. The cubic root of 281096042 is about 655.0657758858.

The spelling of 281096042 in words is "two hundred eighty-one million, ninety-six thousand, forty-two".