103215107 has 4 divisors (see below), whose sum is σ = 103300320. Its totient is φ = 103129896.

The previous prime is 103215083. The next prime is 103215113. The reversal of 103215107 is 701512301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103215107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103215127) 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 3 ways as a sum of consecutive naturals, for example, 40763 + ... + 43220.

It is an arithmetic number, because the mean of its divisors is an integer number (25825080).

Almost surely, 2^103215107 is an apocalyptic number.

103215107 is a deficient number, since it is larger than the sum of its proper divisors (85213).

103215107 is an equidigital number, since it uses as much as digits as its factorization.

103215107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85212.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 103215107 is about 10159.4835990812. The cubic root of 103215107 is about 469.0809064477.

Adding to 103215107 its reverse (701512301), we get a palindrome (804727408).

The spelling of 103215107 in words is "one hundred three million, two hundred fifteen thousand, one hundred seven".