42137899 has 8 divisors (see below), whose sum is σ = 43742160. Its totient is φ = 40543776.

The previous prime is 42137891. The next prime is 42137903. The reversal of 42137899 is 99873124.

42137899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42137899 - 2³ = 42137891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42137891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6537 + ... + 11269.

It is an arithmetic number, because the mean of its divisors is an integer number (5467770).

Almost surely, 2^42137899 is an apocalyptic number.

42137899 is a deficient number, since it is larger than the sum of its proper divisors (1604261).

42137899 is a wasteful number, since it uses less digits than its factorization.

42137899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5069.

The product of its digits is 108864, while the sum is 43.

The square root of 42137899 is about 6491.3711186467. The cubic root of 42137899 is about 347.9826779373.

The spelling of 42137899 in words is "forty-two million, one hundred thirty-seven thousand, eight hundred ninety-nine".