281428203 has 8 divisors (see below), whose sum is σ = 428843008. Its totient is φ = 160816104.

The previous prime is 281428201. The next prime is 281428211. The reversal of 281428203 is 302824182.

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

It is not a de Polignac number, because 281428203 - 2¹ = 281428201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (281428201) 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, 6700651 + ... + 6700692.

It is an arithmetic number, because the mean of its divisors is an integer number (53605376).

Almost surely, 2^281428203 is an apocalyptic number.

281428203 is a deficient number, since it is larger than the sum of its proper divisors (147414805).

281428203 is a wasteful number, since it uses less digits than its factorization.

281428203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13401353.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 281428203 is about 16775.8219768809. The cubic root of 281428203 is about 655.3236968119.

The spelling of 281428203 in words is "two hundred eighty-one million, four hundred twenty-eight thousand, two hundred three".