103638113 has 2 divisors, whose sum is σ = 103638114. Its totient is φ = 103638112.

The previous prime is 103638109. The next prime is 103638133. The reversal of 103638113 is 311836301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102070609 + 1567504 = 10103^2 + 1252^2 .

It is a cyclic number.

It is not a de Polignac number, because 103638113 - 2² = 103638109 is a prime.

It is a super-3 number, since 3×103638113³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (103638133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51819056 + 51819057.

It is an arithmetic number, because the mean of its divisors is an integer number (51819057).

Almost surely, 2^103638113 is an apocalyptic number.

It is an amenable number.

103638113 is a deficient number, since it is larger than the sum of its proper divisors (1).

103638113 is an equidigital number, since it uses as much as digits as its factorization.

103638113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 103638113 is about 10180.2805953471. The cubic root of 103638113 is about 469.7208437347.

The spelling of 103638113 in words is "one hundred three million, six hundred thirty-eight thousand, one hundred thirteen".