15325514215142 has 4 divisors (see below), whose sum is σ = 22988271322716. Its totient is φ = 7662757107570.

The previous prime is 15325514215129. The next prime is 15325514215159. The reversal of 15325514215142 is 24151241552351.

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 15325514215142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3831378553784 + ... + 3831378553787.

It is an arithmetic number, because the mean of its divisors is an integer number (5747067830679).

Almost surely, 2^{15325514215142} is an apocalyptic number.

15325514215142 is a deficient number, since it is larger than the sum of its proper divisors (7662757107574).

15325514215142 is an equidigital number, since it uses as much as digits as its factorization.

15325514215142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7662757107573.

The product of its digits is 240000, while the sum is 41.

Adding to 15325514215142 its reverse (24151241552351), we get a palindrome (39476755767493).

The spelling of 15325514215142 in words is "fifteen trillion, three hundred twenty-five billion, five hundred fourteen million, two hundred fifteen thousand, one hundred forty-two".