281481206 has 16 divisors (see below), whose sum is σ = 454390560. Its totient is φ = 130289280.

The previous prime is 281481203. The next prime is 281481217. The reversal of 281481206 is 602184182.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281481203) 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, 65786 + ... + 69933.

It is an arithmetic number, because the mean of its divisors is an integer number (28399410).

Almost surely, 2^281481206 is an apocalyptic number.

281481206 is a deficient number, since it is larger than the sum of its proper divisors (172909354).

281481206 is a wasteful number, since it uses less digits than its factorization.

281481206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135799.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 281481206 is about 16777.4016462622. The cubic root of 281481206 is about 655.3648345292.

The spelling of 281481206 in words is "two hundred eighty-one million, four hundred eighty-one thousand, two hundred six".