103685401 has 2 divisors, whose sum is σ = 103685402. Its totient is φ = 103685400.

The previous prime is 103685399. The next prime is 103685423. The reversal of 103685401 is 104586301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53275401 + 50410000 = 7299^2 + 7100^2 .

It is an emirp because it is prime and its reverse (104586301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103685401 - 2¹ = 103685399 is a prime.

Together with 103685399, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 103685401.

It is not a weakly prime, because it can be changed into another prime (103682401) 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 as a sum of consecutive naturals, namely, 51842700 + 51842701.

It is an arithmetic number, because the mean of its divisors is an integer number (51842701).

Almost surely, 2^103685401 is an apocalyptic number.

It is an amenable number.

103685401 is a deficient number, since it is larger than the sum of its proper divisors (1).

103685401 is an equidigital number, since it uses as much as digits as its factorization.

103685401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 103685401 is about 10182.6028597800. The cubic root of 103685401 is about 469.7922742832.

The spelling of 103685401 in words is "one hundred three million, six hundred eighty-five thousand, four hundred one".