100580681 has 2 divisors, whose sum is σ = 100580682. Its totient is φ = 100580680.

The previous prime is 100580651. The next prime is 100580707. The reversal of 100580681 is 186085001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99102025 + 1478656 = 9955^2 + 1216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100580681 is a prime.

It is a super-2 number, since 2×100580681² = 20232946780847522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100580651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50290340 + 50290341.

It is an arithmetic number, because the mean of its divisors is an integer number (50290341).

Almost surely, 2^100580681 is an apocalyptic number.

It is an amenable number.

100580681 is a deficient number, since it is larger than the sum of its proper divisors (1).

100580681 is an equidigital number, since it uses as much as digits as its factorization.

100580681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 100580681 is about 10028.9920231297. The cubic root of 100580681 is about 465.0555774323.

The spelling of 100580681 in words is "one hundred million, five hundred eighty thousand, six hundred eighty-one".