142499199 has 8 divisors (see below), whose sum is σ = 190072960. Its totient is φ = 94962456.

The previous prime is 142499167. The next prime is 142499261. The reversal of 142499199 is 991994241.

It is a happy number.

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

It is not a de Polignac number, because 142499199 - 2⁵ = 142499167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142499299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524 + ... + 16950.

It is an arithmetic number, because the mean of its divisors is an integer number (23759120).

Almost surely, 2^142499199 is an apocalyptic number.

142499199 is a deficient number, since it is larger than the sum of its proper divisors (47573761).

142499199 is a wasteful number, since it uses less digits than its factorization.

142499199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18509.

The product of its digits is 209952, while the sum is 48.

The square root of 142499199 is about 11937.3028360681. The cubic root of 142499199 is about 522.3209847429.

The spelling of 142499199 in words is "one hundred forty-two million, four hundred ninety-nine thousand, one hundred ninety-nine".