281061143104 has 63 divisors (see below), whose sum is σ = 648857319123. Its totient is φ = 120442051968.

The previous prime is 281061143101. The next prime is 281061143147. The reversal of 281061143104 is 401341160182.

The square root of 281061143104 is 530152.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (281061143101) by changing a digit.

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 in 8 ways as a sum of consecutive naturals, for example, 29683779 + ... + 29693245.

Almost surely, 2^281061143104 is an apocalyptic number.

281061143104 is the 530152-nd square number.

It is an amenable number.

281061143104 is an abundant number, since it is smaller than the sum of its proper divisors (367796176019).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

281061143104 is an frugal number, since it uses more digits than its factorization.

281061143104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18960 (or 9476 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 281061143104 in words is "two hundred eighty-one billion, sixty-one million, one hundred forty-three thousand, one hundred four".