10815601 has 2 divisors, whose sum is σ = 10815602. Its totient is φ = 10815600.

The previous prime is 10815599. The next prime is 10815611. The reversal of 10815601 is 10651801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8410000 + 2405601 = 2900^2 + 1551^2 .

It is a cyclic number.

It is not a de Polignac number, because 10815601 - 2¹ = 10815599 is a prime.

Together with 10815599, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10815611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5407800 + 5407801.

It is an arithmetic number, because the mean of its divisors is an integer number (5407801).

Almost surely, 2^10815601 is an apocalyptic number.

It is an amenable number.

10815601 is a deficient number, since it is larger than the sum of its proper divisors (1).

10815601 is an equidigital number, since it uses as much as digits as its factorization.

10815601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 10815601 is about 3288.7081050163. The cubic root of 10815601 is about 221.1482731089.

It can be divided in two parts, 10815 and 601, that multiplied together give a triangular number (6499815 = T₃₆₀₅).

The spelling of 10815601 in words is "ten million, eight hundred fifteen thousand, six hundred one".