15005142125 has 8 divisors (see below), whose sum is σ = 18726417528. Its totient is φ = 12004113600.

The previous prime is 15005142091. The next prime is 15005142127. The reversal of 15005142125 is 52124150051.

It can be written as a sum of positive squares in 4 ways, for example, as 791972164 + 14213169961 = 28142^2 + 119219^2 .

It is a de Polignac number, because none of the positive numbers 2^k-15005142125 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15005142094 and 15005142103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15005142127) 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, 60020444 + ... + 60020693.

It is an arithmetic number, because the mean of its divisors is an integer number (2340802191).

Almost surely, 2^15005142125 is an apocalyptic number.

It is an amenable number.

15005142125 is a deficient number, since it is larger than the sum of its proper divisors (3721275403).

15005142125 is an equidigital number, since it uses as much as digits as its factorization.

15005142125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120041152 (or 120041142 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 15005142125 its reverse (52124150051), we get a palindrome (67129292176).

The spelling of 15005142125 in words is "fifteen billion, five million, one hundred forty-two thousand, one hundred twenty-five".