15125314243 has 8 divisors (see below), whose sum is σ = 16311215648. Its totient is φ = 13942615104.

The previous prime is 15125314219. The next prime is 15125314271. The reversal of 15125314243 is 34241352151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15125314243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15125314943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790746 + ... + 809647.

It is an arithmetic number, because the mean of its divisors is an integer number (2038901956).

Almost surely, 2^15125314243 is an apocalyptic number.

15125314243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15125314243 is a deficient number, since it is larger than the sum of its proper divisors (1185901405).

15125314243 is a wasteful number, since it uses less digits than its factorization.

15125314243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601133.

The product of its digits is 14400, while the sum is 31.

Adding to 15125314243 its reverse (34241352151), we get a palindrome (49366666394).

The spelling of 15125314243 in words is "fifteen billion, one hundred twenty-five million, three hundred fourteen thousand, two hundred forty-three".