1500540215 has 16 divisors (see below), whose sum is σ = 1839922560. Its totient is φ = 1174444320.

The previous prime is 1500540203. The next prime is 1500540259. The reversal of 1500540215 is 5120450051.

It is a happy number.

It is not a de Polignac number, because 1500540215 - 2⁸ = 1500539959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50192 + ... + 74298.

It is an arithmetic number, because the mean of its divisors is an integer number (114995160).

Almost surely, 2^1500540215 is an apocalyptic number.

1500540215 is a deficient number, since it is larger than the sum of its proper divisors (339382345).

1500540215 is a wasteful number, since it uses less digits than its factorization.

1500540215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24382.

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

The square root of 1500540215 is about 38736.8069799254. The cubic root of 1500540215 is about 1144.8516464606.

Adding to 1500540215 its reverse (5120450051), we get a palindrome (6620990266).

The spelling of 1500540215 in words is "one billion, five hundred million, five hundred forty thousand, two hundred fifteen".