42102199 has 2 divisors, whose sum is σ = 42102200. Its totient is φ = 42102198.

The previous prime is 42102191. The next prime is 42102257. The reversal of 42102199 is 99120124.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42102199 - 2³ = 42102191 is a prime.

It is a Chen prime.

It is equal to p_2553445 and since 42102199 and 2553445 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42102191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21051099 + 21051100.

It is an arithmetic number, because the mean of its divisors is an integer number (21051100).

Almost surely, 2^42102199 is an apocalyptic number.

42102199 is a deficient number, since it is larger than the sum of its proper divisors (1).

42102199 is an equidigital number, since it uses as much as digits as its factorization.

42102199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 42102199 is about 6488.6207317118. The cubic root of 42102199 is about 347.8843777382.

The spelling of 42102199 in words is "forty-two million, one hundred two thousand, one hundred ninety-nine".