103971861 has 48 divisors (see below), whose sum is σ = 178913280. Its totient is φ = 56933280.

The previous prime is 103971827. The next prime is 103971869. The reversal of 103971861 is 168179301.

It is not a de Polignac number, because 103971861 - 2⁷ = 103971733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103971869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 271276 + ... + 271658.

It is an arithmetic number, because the mean of its divisors is an integer number (3727360).

Almost surely, 2^103971861 is an apocalyptic number.

It is an amenable number.

103971861 is a deficient number, since it is larger than the sum of its proper divisors (74941419).

103971861 is a wasteful number, since it uses less digits than its factorization.

103971861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 103971861 is about 10196.6593058707. The cubic root of 103971861 is about 470.2245207653.

It can be divided in two parts, 1039 and 71861, that added together give a square (72900 = 270²).

The spelling of 103971861 in words is "one hundred three million, nine hundred seventy-one thousand, eight hundred sixty-one".