103781671 has 4 divisors (see below), whose sum is σ = 118607632. Its totient is φ = 88955712.

The previous prime is 103781663. The next prime is 103781683. The reversal of 103781671 is 176187301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176187301 = 79 ⋅2230219.

It is a cyclic number.

It is not a de Polignac number, because 103781671 - 2³ = 103781663 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 (103781621) 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, 7412970 + ... + 7412983.

It is an arithmetic number, because the mean of its divisors is an integer number (29651908).

Almost surely, 2^103781671 is an apocalyptic number.

103781671 is a deficient number, since it is larger than the sum of its proper divisors (14825961).

103781671 is an equidigital number, since it uses as much as digits as its factorization.

103781671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14825960.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 103781671 is about 10187.3289433492. The cubic root of 103781671 is about 469.9376271538.

The spelling of 103781671 in words is "one hundred three million, seven hundred eighty-one thousand, six hundred seventy-one".