42183899 has 2 divisors, whose sum is σ = 42183900. Its totient is φ = 42183898.

The previous prime is 42183887. The next prime is 42183907. The reversal of 42183899 is 99838124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42183899 is a prime.

It is not a weakly prime, because it can be changed into another prime (42183829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21091949 + 21091950.

It is an arithmetic number, because the mean of its divisors is an integer number (21091950).

Almost surely, 2^42183899 is an apocalyptic number.

42183899 is a deficient number, since it is larger than the sum of its proper divisors (1).

42183899 is an equidigital number, since it uses as much as digits as its factorization.

42183899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 44.

The square root of 42183899 is about 6494.9133173584. The cubic root of 42183899 is about 348.1092574324.

The spelling of 42183899 in words is "forty-two million, one hundred eighty-three thousand, eight hundred ninety-nine".