15142053142 has 4 divisors (see below), whose sum is σ = 22713079716. Its totient is φ = 7571026570.

The previous prime is 15142053133. The next prime is 15142053149. The reversal of 15142053142 is 24135024151.

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

It is a self number, because there is not a number n which added to its sum of digits gives 15142053142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15142053149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3785513284 + ... + 3785513287.

It is an arithmetic number, because the mean of its divisors is an integer number (5678269929).

Almost surely, 2^15142053142 is an apocalyptic number.

15142053142 is a deficient number, since it is larger than the sum of its proper divisors (7571026574).

15142053142 is an equidigital number, since it uses as much as digits as its factorization.

15142053142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7571026573.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 15142053142 its reverse (24135024151), we get a palindrome (39277077293).

The spelling of 15142053142 in words is "fifteen billion, one hundred forty-two million, fifty-three thousand, one hundred forty-two".