281064012 has 24 divisors (see below), whose sum is σ = 662312112. Its totient is φ = 92760000.

The previous prime is 281063989. The next prime is 281064019. The reversal of 281064012 is 210460182.

281064012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×281064012² = 157993957683072288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (281064019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114739 + ... + 117162.

It is an arithmetic number, because the mean of its divisors is an integer number (27596338).

Almost surely, 2^281064012 is an apocalyptic number.

It is an amenable number.

281064012 is an abundant number, since it is smaller than the sum of its proper divisors (381248100).

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

281064012 is a wasteful number, since it uses less digits than its factorization.

281064012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232009 (or 232007 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 281064012 is about 16764.9638234027. The cubic root of 281064012 is about 655.0408940534.

The spelling of 281064012 in words is "two hundred eighty-one million, sixty-four thousand, twelve".