15122545125 has 16 divisors (see below), whose sum is σ = 25163915712. Its totient is φ = 8065357200.

The previous prime is 15122545073. The next prime is 15122545127. The reversal of 15122545125 is 52154522151.

It is not a de Polignac number, because 15122545125 - 2⁸ = 15122544869 is a prime.

It is a super-2 number, since 2×15122545125² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15122545127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20163019 + ... + 20163768.

It is an arithmetic number, because the mean of its divisors is an integer number (1572744732).

Almost surely, 2^15122545125 is an apocalyptic number.

15122545125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15122545125 is a deficient number, since it is larger than the sum of its proper divisors (10041370587).

15122545125 is an equidigital number, since it uses as much as digits as its factorization.

15122545125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40326805 (or 40326795 counting only the distinct ones).

The product of its digits is 20000, while the sum is 33.

The spelling of 15122545125 in words is "fifteen billion, one hundred twenty-two million, five hundred forty-five thousand, one hundred twenty-five".