142140402830405 has 16 divisors (see below), whose sum is σ = 194965627764864. Its totient is φ = 97452595713600.

The previous prime is 142140402830399. The next prime is 142140402830417. The reversal of 142140402830405 is 504038204041241.

It is not a de Polignac number, because 142140402830405 - 2¹² = 142140402826309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314543582 + ... + 314995151.

It is an arithmetic number, because the mean of its divisors is an integer number (12185351735304).

Almost surely, 2^{142140402830405} is an apocalyptic number.

It is an amenable number.

142140402830405 is a deficient number, since it is larger than the sum of its proper divisors (52825224934459).

142140402830405 is an equidigital number, since it uses as much as digits as its factorization.

142140402830405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629545196.

The product of its (nonzero) digits is 122880, while the sum is 38.

Adding to 142140402830405 its reverse (504038204041241), we get a palindrome (646178606871646).

The spelling of 142140402830405 in words is "one hundred forty-two trillion, one hundred forty billion, four hundred two million, eight hundred thirty thousand, four hundred five".