103905913 has 2 divisors, whose sum is σ = 103905914. Its totient is φ = 103905912.

The previous prime is 103905899. The next prime is 103905929. The reversal of 103905913 is 319509301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73136704 + 30769209 = 8552^2 + 5547^2 .

It is a cyclic number.

It is not a de Polignac number, because 103905913 - 2¹³ = 103897721 is a prime.

It is not a weakly prime, because it can be changed into another prime (103905983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51952956 + 51952957.

It is an arithmetic number, because the mean of its divisors is an integer number (51952957).

Almost surely, 2^103905913 is an apocalyptic number.

It is an amenable number.

103905913 is a deficient number, since it is larger than the sum of its proper divisors (1).

103905913 is an equidigital number, since it uses as much as digits as its factorization.

103905913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 103905913 is about 10193.4249886876. The cubic root of 103905913 is about 470.1250806373.

The spelling of 103905913 in words is "one hundred three million, nine hundred five thousand, nine hundred thirteen".