142004113 has 4 divisors (see below), whose sum is σ = 145842100. Its totient is φ = 138166128.

The previous prime is 142004089. The next prime is 142004117. The reversal of 142004113 is 311400241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 135769104 + 6235009 = 11652^2 + 2497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142004113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142004117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1918938 + ... + 1919011.

It is an arithmetic number, because the mean of its divisors is an integer number (36460525).

Almost surely, 2^142004113 is an apocalyptic number.

It is an amenable number.

142004113 is a deficient number, since it is larger than the sum of its proper divisors (3837987).

142004113 is an equidigital number, since it uses as much as digits as its factorization.

142004113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3837986.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 142004113 is about 11916.5478642097. The cubic root of 142004113 is about 521.7153816556.

Adding to 142004113 its reverse (311400241), we get a palindrome (453404354).

The spelling of 142004113 in words is "one hundred forty-two million, four thousand, one hundred thirteen".