100604261 has 2 divisors, whose sum is σ = 100604262. Its totient is φ = 100604260.

The previous prime is 100604237. The next prime is 100604291. The reversal of 100604261 is 162406001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93973636 + 6630625 = 9694^2 + 2575^2 .

It is an emirp because it is prime and its reverse (162406001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100604261 is a prime.

It is a super-2 number, since 2×100604261² = 20242434662712242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100604291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50302130 + 50302131.

It is an arithmetic number, because the mean of its divisors is an integer number (50302131).

Almost surely, 2^100604261 is an apocalyptic number.

It is an amenable number.

100604261 is a deficient number, since it is larger than the sum of its proper divisors (1).

100604261 is an equidigital number, since it uses as much as digits as its factorization.

100604261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 100604261 is about 10030.1675459585. The cubic root of 100604261 is about 465.0919169280.

The spelling of 100604261 in words is "one hundred million, six hundred four thousand, two hundred sixty-one".