100281953 has 2 divisors, whose sum is σ = 100281954. Its totient is φ = 100281952.

The previous prime is 100281949. The next prime is 100282027. The reversal of 100281953 is 359182001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92486689 + 7795264 = 9617^2 + 2792^2 .

It is a cyclic number.

It is not a de Polignac number, because 100281953 - 2² = 100281949 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (100281553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50140976 + 50140977.

It is an arithmetic number, because the mean of its divisors is an integer number (50140977).

Almost surely, 2^100281953 is an apocalyptic number.

It is an amenable number.

100281953 is a deficient number, since it is larger than the sum of its proper divisors (1).

100281953 is an equidigital number, since it uses as much as digits as its factorization.

100281953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 100281953 is about 10014.0877267977. The cubic root of 100281953 is about 464.5947106403.

The spelling of 100281953 in words is "one hundred million, two hundred eighty-one thousand, nine hundred fifty-three".