15145243040 has 96 divisors (see below), whose sum is σ = 37055854080. Its totient is φ = 5842658304.

The previous prime is 15145243027. The next prime is 15145243049. The reversal of 15145243040 is 4034254151.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 15145242994 and 15145243012.

It is not an unprimeable number, because it can be changed into a prime (15145243049) 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, 7269839 + ... + 7271921.

It is an arithmetic number, because the mean of its divisors is an integer number (385998480).

Almost surely, 2^15145243040 is an apocalyptic number.

15145243040 is a gapful number since it is divisible by the number (10) 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 15145243040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18527927040).

15145243040 is an abundant number, since it is smaller than the sum of its proper divisors (21910611040).

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

15145243040 is a wasteful number, since it uses less digits than its factorization.

15145243040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694 (or 3686 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 15145243040 its reverse (4034254151), we get a palindrome (19179497191).

The spelling of 15145243040 in words is "fifteen billion, one hundred forty-five million, two hundred forty-three thousand, forty".