15140115424 has 144 divisors (see below), whose sum is σ = 36161209728. Its totient is φ = 6110666496.

The previous prime is 15140115421. The next prime is 15140115443. The reversal of 15140115424 is 42451104151.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 15140115392 and 15140115401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15140115421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7938279 + ... + 7940185.

It is an arithmetic number, because the mean of its divisors is an integer number (251119512).

Almost surely, 2^15140115424 is an apocalyptic number.

15140115424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15140115424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18080604864).

15140115424 is an abundant number, since it is smaller than the sum of its proper divisors (21021094304).

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

15140115424 is a wasteful number, since it uses less digits than its factorization.

15140115424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037 (or 2006 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 15140115424 its reverse (42451104151), we get a palindrome (57591219575).

The spelling of 15140115424 in words is "fifteen billion, one hundred forty million, one hundred fifteen thousand, four hundred twenty-four".