103689841 has 2 divisors, whose sum is σ = 103689842. Its totient is φ = 103689840.

The previous prime is 103689787. The next prime is 103689853. The reversal of 103689841 is 148986301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89851441 + 13838400 = 9479^2 + 3720^2 .

It is an emirp because it is prime and its reverse (148986301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103689841 - 2⁹ = 103689329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103689794 and 103689803.

It is not a weakly prime, because it can be changed into another prime (103689881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51844920 + 51844921.

It is an arithmetic number, because the mean of its divisors is an integer number (51844921).

Almost surely, 2^103689841 is an apocalyptic number.

It is an amenable number.

103689841 is a deficient number, since it is larger than the sum of its proper divisors (1).

103689841 is an equidigital number, since it uses as much as digits as its factorization.

103689841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 103689841 is about 10182.8208763584. The cubic root of 103689841 is about 469.7989799779.

The spelling of 103689841 in words is "one hundred three million, six hundred eighty-nine thousand, eight hundred forty-one".