15132040 has 128 divisors (see below), whose sum is σ = 45100800. Its totient is φ = 4439040.

The previous prime is 15132031. The next prime is 15132043. The reversal of 15132040 is 4023151.

15132040 = T₄₄₁ + T₄₄₂ + ... + T₅₆₀.

15132040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15132043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 890112 + ... + 890128.

It is an arithmetic number, because the mean of its divisors is an integer number (352350).

Almost surely, 2^15132040 is an apocalyptic number.

15132040 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 15132040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22550400).

15132040 is an abundant number, since it is smaller than the sum of its proper divisors (29968760).

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

15132040 is a wasteful number, since it uses less digits than its factorization.

15132040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 15132040 is about 3889.9922879101. The cubic root of 15132040 is about 247.3427358589.

Adding to 15132040 its reverse (4023151), we get a palindrome (19155191).

Subtracting from 15132040 its reverse (4023151), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1513 and 2040, that added together give a palindrome (3553).

The spelling of 15132040 in words is "fifteen million, one hundred thirty-two thousand, forty".