10213515 has 72 divisors (see below), whose sum is σ = 20554560. Its totient is φ = 4672512.

The previous prime is 10213513. The next prime is 10213519. The reversal of 10213515 is 51531201.

It is not a de Polignac number, because 10213515 - 2¹ = 10213513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10213513) 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 71 ways as a sum of consecutive naturals, for example, 129246 + ... + 129324.

It is an arithmetic number, because the mean of its divisors is an integer number (285480).

Almost surely, 2^10213515 is an apocalyptic number.

10213515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10213515 is an abundant number, since it is smaller than the sum of its proper divisors (10341045).

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

10213515 is a wasteful number, since it uses less digits than its factorization.

10213515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 10213515 is about 3195.8590394446. The cubic root of 10213515 is about 216.9660306288.

Adding to 10213515 its reverse (51531201), we get a palindrome (61744716).

The spelling of 10213515 in words is "ten million, two hundred thirteen thousand, five hundred fifteen".