103969813 has 2 divisors, whose sum is σ = 103969814. Its totient is φ = 103969812.

The previous prime is 103969777. The next prime is 103969819. The reversal of 103969813 is 318969301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65318724 + 38651089 = 8082^2 + 6217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103969813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103969819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51984906 + 51984907.

It is an arithmetic number, because the mean of its divisors is an integer number (51984907).

Almost surely, 2^103969813 is an apocalyptic number.

It is an amenable number.

103969813 is a deficient number, since it is larger than the sum of its proper divisors (1).

103969813 is an equidigital number, since it uses as much as digits as its factorization.

103969813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 103969813 is about 10196.5588803282. The cubic root of 103969813 is about 470.2214333077.

The spelling of 103969813 in words is "one hundred three million, nine hundred sixty-nine thousand, eight hundred thirteen".