42919099 has 2 divisors, whose sum is σ = 42919100. Its totient is φ = 42919098.

The previous prime is 42919073. The next prime is 42919111. The reversal of 42919099 is 99091924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42919099 - 2⁷ = 42918971 is a prime.

It is equal to p_2599945 and since 42919099 and 2599945 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42919039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21459549 + 21459550.

It is an arithmetic number, because the mean of its divisors is an integer number (21459550).

Almost surely, 2^42919099 is an apocalyptic number.

42919099 is a deficient number, since it is larger than the sum of its proper divisors (1).

42919099 is an equidigital number, since it uses as much as digits as its factorization.

42919099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 42919099 is about 6551.2669767000. The cubic root of 42919099 is about 350.1199561614.

The spelling of 42919099 in words is "forty-two million, nine hundred nineteen thousand, ninety-nine".