100559623 has 2 divisors, whose sum is σ = 100559624. Its totient is φ = 100559622.

The previous prime is 100559579. The next prime is 100559633. The reversal of 100559623 is 326955001.

It is a strong prime.

It is an emirp because it is prime and its reverse (326955001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100559623 - 2¹⁷ = 100428551 is a prime.

It is a super-2 number, since 2×100559623² = 20224475555804258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100559633) 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, 50279811 + 50279812.

It is an arithmetic number, because the mean of its divisors is an integer number (50279812).

Almost surely, 2^100559623 is an apocalyptic number.

100559623 is a deficient number, since it is larger than the sum of its proper divisors (1).

100559623 is an equidigital number, since it uses as much as digits as its factorization.

100559623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 100559623 is about 10027.9421119191. The cubic root of 100559623 is about 465.0231198278.

The spelling of 100559623 in words is "one hundred million, five hundred fifty-nine thousand, six hundred twenty-three".