142144402 has 8 divisors (see below), whose sum is σ = 213267456. Its totient is φ = 71055252.

The previous prime is 142144397. The next prime is 142144421. The reversal of 142144402 is 204441241.

142144402 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10543 + ... + 19885.

It is an arithmetic number, because the mean of its divisors is an integer number (26658432).

Almost surely, 2^142144402 is an apocalyptic number.

142144402 is a deficient number, since it is larger than the sum of its proper divisors (71123054).

142144402 is an equidigital number, since it uses as much as digits as its factorization.

142144402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16952.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 142144402 is about 11922.4327215548. The cubic root of 142144402 is about 521.8871298267.

Adding to 142144402 its reverse (204441241), we get a palindrome (346585643).

The spelling of 142144402 in words is "one hundred forty-two million, one hundred forty-four thousand, four hundred two".