100099969 has 2 divisors, whose sum is σ = 100099970. Its totient is φ = 100099968.

The previous prime is 100099949. The next prime is 100099973. The reversal of 100099969 is 969990001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81721600 + 18378369 = 9040^2 + 4287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100099969 is a prime.

It is a super-2 number, since 2×100099969² = 20040007587601922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100099939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50049984 + 50049985.

It is an arithmetic number, because the mean of its divisors is an integer number (50049985).

Almost surely, 2^100099969 is an apocalyptic number.

It is an amenable number.

100099969 is a deficient number, since it is larger than the sum of its proper divisors (1).

100099969 is an equidigital number, since it uses as much as digits as its factorization.

100099969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39366, while the sum is 43.

The square root of 100099969 is about 10004.9972013989. The cubic root of 100099969 is about 464.3135035133.

The spelling of 100099969 in words is "one hundred million, ninety-nine thousand, nine hundred sixty-nine".