103185215 has 16 divisors (see below), whose sum is σ = 142129728. Its totient is φ = 70446336.

The previous prime is 103185209. The next prime is 103185217. The reversal of 103185215 is 512581301.

103185215 = T₁₅₅ + T₁₅₆ + ... + T₈₅₃.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 103185215 - 2²² = 98990911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103185217) by changing a digit.

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, 1829 + ... + 14481.

It is an arithmetic number, because the mean of its divisors is an integer number (8883108).

Almost surely, 2^103185215 is an apocalyptic number.

103185215 is a deficient number, since it is larger than the sum of its proper divisors (38944513).

103185215 is a wasteful number, since it uses less digits than its factorization.

103185215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12898.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 103185215 is about 10158.0123547867. The cubic root of 103185215 is about 469.0356187611.

The spelling of 103185215 in words is "one hundred three million, one hundred eighty-five thousand, two hundred fifteen".