15435125144513 has 4 divisors (see below), whose sum is σ = 15445926493140. Its totient is φ = 15424323795888.

The previous prime is 15435125144503. The next prime is 15435125144561. The reversal of 15435125144513 is 31544152153451.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5927627747584 + 9507497396929 = 2434672^2 + 3083423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15435125144513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15435125144503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5400672170 + ... + 5400675027.

It is an arithmetic number, because the mean of its divisors is an integer number (3861481623285).

Almost surely, 2^{15435125144513} is an apocalyptic number.

It is an amenable number.

15435125144513 is a deficient number, since it is larger than the sum of its proper divisors (10801348627).

15435125144513 is a wasteful number, since it uses less digits than its factorization.

15435125144513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10801348626.

The product of its digits is 720000, while the sum is 44.

Adding to 15435125144513 its reverse (31544152153451), we get a palindrome (46979277297964).

The spelling of 15435125144513 in words is "fifteen trillion, four hundred thirty-five billion, one hundred twenty-five million, one hundred forty-four thousand, five hundred thirteen".