103664641 has 2 divisors, whose sum is σ = 103664642. Its totient is φ = 103664640.

The previous prime is 103664633. The next prime is 103664663. The reversal of 103664641 is 146466301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77440000 + 26224641 = 8800^2 + 5121^2 .

It is an emirp because it is prime and its reverse (146466301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103664641 - 2³ = 103664633 is a prime.

It is not a weakly prime, because it can be changed into another prime (103664621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51832320 + 51832321.

It is an arithmetic number, because the mean of its divisors is an integer number (51832321).

Almost surely, 2^103664641 is an apocalyptic number.

It is an amenable number.

103664641 is a deficient number, since it is larger than the sum of its proper divisors (1).

103664641 is an equidigital number, since it uses as much as digits as its factorization.

103664641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 103664641 is about 10181.5834230241. The cubic root of 103664641 is about 469.7609180894.

The spelling of 103664641 in words is "one hundred three million, six hundred sixty-four thousand, six hundred forty-one".