104661001 has 2 divisors, whose sum is σ = 104661002. Its totient is φ = 104661000.

The previous prime is 104660999. The next prime is 104661031. The reversal of 104661001 is 100166401.

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., 98485776 + 6175225 = 9924^2 + 2485^2 .

It is a cyclic number.

It is not a de Polignac number, because 104661001 - 2¹ = 104660999 is a prime.

Together with 104660999, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104661001.

It is not a weakly prime, because it can be changed into another prime (104661031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52330500 + 52330501.

It is an arithmetic number, because the mean of its divisors is an integer number (52330501).

Almost surely, 2^104661001 is an apocalyptic number.

It is an amenable number.

104661001 is a deficient number, since it is larger than the sum of its proper divisors (1).

104661001 is an equidigital number, since it uses as much as digits as its factorization.

104661001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 104661001 is about 10230.3959356420. The cubic root of 104661001 is about 471.2611384206.

The spelling of 104661001 in words is "one hundred four million, six hundred sixty-one thousand, one".