103685381 has 4 divisors (see below), whose sum is σ = 105232992. Its totient is φ = 102137772.

The previous prime is 103685369. The next prime is 103685399. The reversal of 103685381 is 183586301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103685381 - 2⁶ = 103685317 is a prime.

It is a super-2 number, since 2×103685381² = 21501316466230322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103684381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773705 + ... + 773838.

It is an arithmetic number, because the mean of its divisors is an integer number (26308248).

Almost surely, 2^103685381 is an apocalyptic number.

It is an amenable number.

103685381 is a deficient number, since it is larger than the sum of its proper divisors (1547611).

103685381 is an equidigital number, since it uses as much as digits as its factorization.

103685381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547610.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 103685381 is about 10182.6018777128. The cubic root of 103685381 is about 469.7922440770.

The spelling of 103685381 in words is "one hundred three million, six hundred eighty-five thousand, three hundred eighty-one".