281252229 has 8 divisors (see below), whose sum is σ = 380284992. Its totient is φ = 184860480.

The previous prime is 281252173. The next prime is 281252249. The reversal of 281252229 is 922252182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 281252229 - 2¹² = 281248133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 281252229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281252249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660004 + ... + 660429.

It is an arithmetic number, because the mean of its divisors is an integer number (47535624).

Almost surely, 2^281252229 is an apocalyptic number.

It is an amenable number.

281252229 is a deficient number, since it is larger than the sum of its proper divisors (99032763).

281252229 is a wasteful number, since it uses less digits than its factorization.

281252229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320507.

The product of its digits is 11520, while the sum is 33.

The square root of 281252229 is about 16770.5762870570. The cubic root of 281252229 is about 655.1870794017.

The spelling of 281252229 in words is "two hundred eighty-one million, two hundred fifty-two thousand, two hundred twenty-nine".