10202115 has 64 divisors (see below), whose sum is σ = 20800512. Its totient is φ = 4181760.

The previous prime is 10202099. The next prime is 10202117. The reversal of 10202115 is 51120201.

It is not a de Polignac number, because 10202115 - 2⁴ = 10202099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10202115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 139719 + ... + 139791.

It is an arithmetic number, because the mean of its divisors is an integer number (325008).

Almost surely, 2^10202115 is an apocalyptic number.

10202115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10202115 is an abundant number, since it is smaller than the sum of its proper divisors (10598397).

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

10202115 is an equidigital number, since it uses as much as digits as its factorization.

10202115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 10202115 is about 3194.0749834655. The cubic root of 10202115 is about 216.8852770532.

Adding to 10202115 its reverse (51120201), we get a palindrome (61322316).

The spelling of 10202115 in words is "ten million, two hundred two thousand, one hundred fifteen".