10318621 has 2 divisors, whose sum is σ = 10318622. Its totient is φ = 10318620.

The previous prime is 10318613. The next prime is 10318639. The reversal of 10318621 is 12681301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10310521 + 8100 = 3211^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 10318621 - 2³ = 10318613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10318592 and 10318601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10318681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5159310 + 5159311.

It is an arithmetic number, because the mean of its divisors is an integer number (5159311).

Almost surely, 2^10318621 is an apocalyptic number.

It is an amenable number.

10318621 is a deficient number, since it is larger than the sum of its proper divisors (1).

10318621 is an equidigital number, since it uses as much as digits as its factorization.

10318621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 10318621 is about 3212.2610416963. The cubic root of 10318621 is about 217.7077488310.

Adding to 10318621 its reverse (12681301), we get a palindrome (22999922).

The spelling of 10318621 in words is "ten million, three hundred eighteen thousand, six hundred twenty-one".