15116530 has 72 divisors (see below), whose sum is σ = 33281388. Its totient is φ = 4910400.

The previous prime is 15116527. The next prime is 15116531. The reversal of 15116530 is 3561151.

It can be written as a sum of positive squares in 2 ways, for example, as 14070001 + 1046529 = 3751^2 + 1023^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (15116531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 487615 + ... + 487645.

Almost surely, 2^15116530 is an apocalyptic number.

15116530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15116530 is an abundant number, since it is smaller than the sum of its proper divisors (18164858).

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

15116530 is a wasteful number, since it uses less digits than its factorization.

15116530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 15116530 is about 3887.9981995881. The cubic root of 15116530 is about 247.2582000598.

Adding to 15116530 its reverse (3561151), we get a palindrome (18677681).

The spelling of 15116530 in words is "fifteen million, one hundred sixteen thousand, five hundred thirty".