103215165 has 16 divisors (see below), whose sum is σ = 165336768. Its totient is φ = 54983936.

The previous prime is 103215137. The next prime is 103215173. The reversal of 103215165 is 561512301.

It is a cyclic number.

It is not a de Polignac number, because 103215165 - 2⁷ = 103215037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11134 + ... + 18176.

It is an arithmetic number, because the mean of its divisors is an integer number (10333548).

Almost surely, 2^103215165 is an apocalyptic number.

103215165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103215165 is a deficient number, since it is larger than the sum of its proper divisors (62121603).

103215165 is an equidigital number, since it uses as much as digits as its factorization.

103215165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8028.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 103215165 is about 10159.4864535566. The cubic root of 103215165 is about 469.0809943118.

Adding to 103215165 its reverse (561512301), we get a palindrome (664727466).

The spelling of 103215165 in words is "one hundred three million, two hundred fifteen thousand, one hundred sixty-five".