103145665 has 16 divisors (see below), whose sum is σ = 142019712. Its totient is φ = 70447104.

The previous prime is 103145657. The next prime is 103145671. The reversal of 103145665 is 566541301.

It is not a de Polignac number, because 103145665 - 2³ = 103145657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3262 + ... + 14728.

It is an arithmetic number, because the mean of its divisors is an integer number (8876232).

Almost surely, 2^103145665 is an apocalyptic number.

It is an amenable number.

103145665 is a deficient number, since it is larger than the sum of its proper divisors (38874047).

103145665 is a wasteful number, since it uses less digits than its factorization.

103145665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11736.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 103145665 is about 10156.0654290921. The cubic root of 103145665 is about 468.9756853384.

Adding to 103145665 its reverse (566541301), we get a palindrome (669686966).

The spelling of 103145665 in words is "one hundred three million, one hundred forty-five thousand, six hundred sixty-five".