42142099 has 8 divisors (see below), whose sum is σ = 44755200. Its totient is φ = 39543936.

The previous prime is 42142091. The next prime is 42142151. The reversal of 42142099 is 99024124.

It is a happy number.

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 42142099 - 2³ = 42142091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42142099.

It is not an unprimeable number, because it can be changed into a prime (42142091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2382 + ... + 9484.

It is an arithmetic number, because the mean of its divisors is an integer number (5594400).

Almost surely, 2^42142099 is an apocalyptic number.

42142099 is a deficient number, since it is larger than the sum of its proper divisors (2613101).

42142099 is a wasteful number, since it uses less digits than its factorization.

42142099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7469.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 42142099 is about 6491.6946169702. The cubic root of 42142099 is about 347.9942390159.

The spelling of 42142099 in words is "forty-two million, one hundred forty-two thousand, ninety-nine".