15152540 has 36 divisors (see below), whose sum is σ = 34464024. Its totient is φ = 5593536.

The previous prime is 15152539. The next prime is 15152549. The reversal of 15152540 is 4525151.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15152549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1139 + ... + 5621.

It is an arithmetic number, because the mean of its divisors is an integer number (957334).

Almost surely, 2^15152540 is an apocalyptic number.

15152540 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 15152540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17232012).

15152540 is an abundant number, since it is smaller than the sum of its proper divisors (19311484).

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

15152540 is a wasteful number, since it uses less digits than its factorization.

15152540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518 (or 4503 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 15152540 is about 3892.6263627530. The cubic root of 15152540 is about 247.4543805998.

Adding to 15152540 its reverse (4525151), we get a palindrome (19677691).

The spelling of 15152540 in words is "fifteen million, one hundred fifty-two thousand, five hundred forty".