15131125140 has 24 divisors (see below), whose sum is σ = 42367150560. Its totient is φ = 4034966688.

The previous prime is 15131125129. The next prime is 15131125159. The reversal of 15131125140 is 4152113151.

It is a self number, because there is not a number n which added to its sum of digits gives 15131125140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126092650 + ... + 126092769.

It is an arithmetic number, because the mean of its divisors is an integer number (1765297940).

Almost surely, 2^15131125140 is an apocalyptic number.

15131125140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15131125140 is an abundant number, since it is smaller than the sum of its proper divisors (27236025420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15131125140 is a wasteful number, since it uses less digits than its factorization.

15131125140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252185431 (or 252185429 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

Adding to 15131125140 its reverse (4152113151), we get a palindrome (19283238291).

The spelling of 15131125140 in words is "fifteen billion, one hundred thirty-one million, one hundred twenty-five thousand, one hundred forty".