100558841 has 2 divisors, whose sum is σ = 100558842. Its totient is φ = 100558840.

The previous prime is 100558837. The next prime is 100558867. The reversal of 100558841 is 148855001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99600400 + 958441 = 9980^2 + 979^2 .

It is an emirp because it is prime and its reverse (148855001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100558841 - 2² = 100558837 is a prime.

It is a super-2 number, since 2×100558841² = 20224161006526562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100558798 and 100558807.

It is not a weakly prime, because it can be changed into another prime (100558891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50279420 + 50279421.

It is an arithmetic number, because the mean of its divisors is an integer number (50279421).

Almost surely, 2^100558841 is an apocalyptic number.

It is an amenable number.

100558841 is a deficient number, since it is larger than the sum of its proper divisors (1).

100558841 is an equidigital number, since it uses as much as digits as its factorization.

100558841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 100558841 is about 10027.9031207925. The cubic root of 100558841 is about 465.0219144102.

The spelling of 100558841 in words is "one hundred million, five hundred fifty-eight thousand, eight hundred forty-one".