103690105 has 4 divisors (see below), whose sum is σ = 124428132. Its totient is φ = 82952080.

The previous prime is 103690099. The next prime is 103690121. The reversal of 103690105 is 501096301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41011216 + 62678889 = 6404^2 + 7917^2 .

It is not a de Polignac number, because 103690105 - 2⁷ = 103689977 is a prime.

It is a super-2 number, since 2×103690105² = 21503275749822050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103690105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10369006 + ... + 10369015.

It is an arithmetic number, because the mean of its divisors is an integer number (31107033).

Almost surely, 2^103690105 is an apocalyptic number.

It is an amenable number.

103690105 is a deficient number, since it is larger than the sum of its proper divisors (20738027).

103690105 is an equidigital number, since it uses as much as digits as its factorization.

103690105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20738026.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 103690105 is about 10182.8338393593. The cubic root of 103690105 is about 469.7993786889.

The spelling of 103690105 in words is "one hundred three million, six hundred ninety thousand, one hundred five".