100623199 has 2 divisors, whose sum is σ = 100623200. Its totient is φ = 100623198.

The previous prime is 100623163. The next prime is 100623209. The reversal of 100623199 is 991326001.

It is a strong prime.

It is an emirp because it is prime and its reverse (991326001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100623199 - 2⁷ = 100623071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100623199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100623499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50311599 + 50311600.

It is an arithmetic number, because the mean of its divisors is an integer number (50311600).

Almost surely, 2^100623199 is an apocalyptic number.

100623199 is a deficient number, since it is larger than the sum of its proper divisors (1).

100623199 is an equidigital number, since it uses as much as digits as its factorization.

100623199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 100623199 is about 10031.1115535617. Note that the first 3 decimals coincide. The cubic root of 100623199 is about 465.1210984557.

The spelling of 100623199 in words is "one hundred million, six hundred twenty-three thousand, one hundred ninety-nine".