103913613 has 12 divisors (see below), whose sum is σ = 150547228. Its totient is φ = 69068160.

The previous prime is 103913611. The next prime is 103913633. The reversal of 103913613 is 316319301.

103913613 is a `hidden beast` number, since 1 + 0 + 39 + 13 + 613 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 76003524 + 27910089 = 8718^2 + 5283^2 .

It is not a de Polignac number, because 103913613 - 2¹ = 103913611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103913611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14098 + ... + 20163.

Almost surely, 2^103913613 is an apocalyptic number.

It is an amenable number.

103913613 is a deficient number, since it is larger than the sum of its proper divisors (46633615).

103913613 is a wasteful number, since it uses less digits than its factorization.

103913613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34604 (or 34601 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 103913613 is about 10193.8026761361. The cubic root of 103913613 is about 470.1366933024.

The spelling of 103913613 in words is "one hundred three million, nine hundred thirteen thousand, six hundred thirteen".