281481180304 has 15 divisors (see below), whose sum is σ = 545373898617. Its totient is φ = 140739529056.

The previous prime is 281481180289. The next prime is 281481180311. The reversal of 281481180304 is 403081184182.

The square root of 281481180304 is 530548.

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

It can be written as a sum of positive squares in only one way, i.e., 207936400 + 281273243904 = 14420^2 + 530352^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2055874 + ... + 2188510.

Almost surely, 2^281481180304 is an apocalyptic number.

281481180304 is the 530548-th square number.

It is an amenable number.

281481180304 is a deficient number, since it is larger than the sum of its proper divisors (263892718313).

281481180304 is an frugal number, since it uses more digits than its factorization.

281481180304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265282 (or 132639 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The spelling of 281481180304 in words is "two hundred eighty-one billion, four hundred eighty-one million, one hundred eighty thousand, three hundred four".