20941199 has 2 divisors, whose sum is σ = 20941200. Its totient is φ = 20941198.

The previous prime is 20941177. The next prime is 20941231. The reversal of 20941199 is 99114902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20941199 - 2²⁰ = 19892623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20941169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10470599 + 10470600.

It is an arithmetic number, because the mean of its divisors is an integer number (10470600).

Almost surely, 2^20941199 is an apocalyptic number.

20941199 is a deficient number, since it is larger than the sum of its proper divisors (1).

20941199 is an equidigital number, since it uses as much as digits as its factorization.

20941199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 20941199 is about 4576.1554824984. The cubic root of 20941199 is about 275.6346729534.

The spelling of 20941199 in words is "twenty million, nine hundred forty-one thousand, one hundred ninety-nine".