42013999 has 2 divisors, whose sum is σ = 42014000. Its totient is φ = 42013998.

The previous prime is 42013991. The next prime is 42014033. The reversal of 42013999 is 99931024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42013999 - 2³ = 42013991 is a prime.

It is a super-2 number, since 2×42013999² = 3530352223944002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42013991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21006999 + 21007000.

It is an arithmetic number, because the mean of its divisors is an integer number (21007000).

Almost surely, 2^42013999 is an apocalyptic number.

42013999 is a deficient number, since it is larger than the sum of its proper divisors (1).

42013999 is an equidigital number, since it uses as much as digits as its factorization.

42013999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 42013999 is about 6481.8206547235. The cubic root of 42013999 is about 347.6412799582.

The spelling of 42013999 in words is "forty-two million, thirteen thousand, nine hundred ninety-nine".