103606621 has 2 divisors, whose sum is σ = 103606622. Its totient is φ = 103606620.

The previous prime is 103606597. The next prime is 103606627. The reversal of 103606621 is 126606301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80460900 + 23145721 = 8970^2 + 4811^2 .

It is an emirp because it is prime and its reverse (126606301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103606621 is a prime.

It is a super-3 number, since 3×103606621³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103606627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51803310 + 51803311.

It is an arithmetic number, because the mean of its divisors is an integer number (51803311).

Almost surely, 2^103606621 is an apocalyptic number.

It is an amenable number.

103606621 is a deficient number, since it is larger than the sum of its proper divisors (1).

103606621 is an equidigital number, since it uses as much as digits as its factorization.

103606621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 103606621 is about 10178.7337621140. The cubic root of 103606621 is about 469.6732616662.

The spelling of 103606621 in words is "one hundred three million, six hundred six thousand, six hundred twenty-one".