101000281 has 8 divisors (see below), whose sum is σ = 107196264. Its totient is φ = 94832640.

The previous prime is 101000279. The next prime is 101000287. The reversal of 101000281 is 182000101.

It can be written as a sum of positive squares in 4 ways, for example, as 2673225 + 98327056 = 1635^2 + 9916^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 101000281 - 2¹ = 101000279 is a prime.

It is a super-2 number, since 2×101000281² = 20402113524157922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101000287) 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, 501 + ... + 14221.

It is an arithmetic number, because the mean of its divisors is an integer number (13399533).

Almost surely, 2^101000281 is an apocalyptic number.

It is an amenable number.

101000281 is a deficient number, since it is larger than the sum of its proper divisors (6195983).

101000281 is a wasteful number, since it uses less digits than its factorization.

101000281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14171.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 101000281 is about 10049.8896013837. The cubic root of 101000281 is about 465.7013826677.

Adding to 101000281 its reverse (182000101), we get a palindrome (283000382).

The spelling of 101000281 in words is "one hundred one million, two hundred eighty-one", and thus it is an aban number.