100605613 has 2 divisors, whose sum is σ = 100605614. Its totient is φ = 100605612.

The previous prime is 100605601. The next prime is 100605623. The reversal of 100605613 is 316506001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55621764 + 44983849 = 7458^2 + 6707^2 .

It is a cyclic number.

It is not a de Polignac number, because 100605613 - 2⁵ = 100605581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100605623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50302806 + 50302807.

It is an arithmetic number, because the mean of its divisors is an integer number (50302807).

Almost surely, 2^100605613 is an apocalyptic number.

It is an amenable number.

100605613 is a deficient number, since it is larger than the sum of its proper divisors (1).

100605613 is an equidigital number, since it uses as much as digits as its factorization.

100605613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 100605613 is about 10030.2349424129. The cubic root of 100605613 is about 465.0940003436.

The spelling of 100605613 in words is "one hundred million, six hundred five thousand, six hundred thirteen".