72100199 has 2 divisors, whose sum is σ = 72100200. Its totient is φ = 72100198.

The previous prime is 72100187. The next prime is 72100229. The reversal of 72100199 is 99100127.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72100199 - 2⁸ = 72099943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72100799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36050099 + 36050100.

It is an arithmetic number, because the mean of its divisors is an integer number (36050100).

Almost surely, 2^72100199 is an apocalyptic number.

72100199 is a deficient number, since it is larger than the sum of its proper divisors (1).

72100199 is an equidigital number, since it uses as much as digits as its factorization.

72100199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 72100199 is about 8491.1836041862. The cubic root of 72100199 is about 416.2096587862.

The spelling of 72100199 in words is "seventy-two million, one hundred thousand, one hundred ninety-nine".