100630281 has 16 divisors (see below), whose sum is σ = 136415744. Its totient is φ = 65971584.

The previous prime is 100630241. The next prime is 100630303. The reversal of 100630281 is 182036001.

It is not a de Polignac number, because 100630281 - 2⁹ = 100629769 is a prime.

It is a super-2 number, since 2×100630281² = 20252906908277922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100630241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132555 + ... + 133311.

It is an arithmetic number, because the mean of its divisors is an integer number (8525984).

Almost surely, 2^100630281 is an apocalyptic number.

It is an amenable number.

100630281 is a deficient number, since it is larger than the sum of its proper divisors (35785463).

100630281 is an equidigital number, since it uses as much as digits as its factorization.

100630281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 100630281 is about 10031.4645491075. The cubic root of 100630281 is about 465.1320101553.

Adding to 100630281 its reverse (182036001), we get a palindrome (282666282).

The spelling of 100630281 in words is "one hundred million, six hundred thirty thousand, two hundred eighty-one".