142144013 has 8 divisors (see below), whose sum is σ = 155152800. Its totient is φ = 129149680.

The previous prime is 142144003. The next prime is 142144031. The reversal of 142144013 is 310441241.

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

It is not a de Polignac number, because 142144013 - 2⁶ = 142143949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142144003) 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, 34331 + ... + 38247.

It is an arithmetic number, because the mean of its divisors is an integer number (19394100).

Almost surely, 2^142144013 is an apocalyptic number.

It is an amenable number.

142144013 is a deficient number, since it is larger than the sum of its proper divisors (13008787).

142144013 is a wasteful number, since it uses less digits than its factorization.

142144013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 142144013 is about 11922.4164077590. The cubic root of 142144013 is about 521.8866537515.

Adding to 142144013 its reverse (310441241), we get a palindrome (452585254).

The spelling of 142144013 in words is "one hundred forty-two million, one hundred forty-four thousand, thirteen".