104215289 has 2 divisors, whose sum is σ = 104215290. Its totient is φ = 104215288.

The previous prime is 104215261. The next prime is 104215303. The reversal of 104215289 is 982512401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102677689 + 1537600 = 10133^2 + 1240^2 .

It is a cyclic number.

It is not a de Polignac number, because 104215289 - 2¹² = 104211193 is a prime.

It is a super-2 number, since 2×104215289² = 21721652922707042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (104215249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52107644 + 52107645.

It is an arithmetic number, because the mean of its divisors is an integer number (52107645).

Almost surely, 2^104215289 is an apocalyptic number.

It is an amenable number.

104215289 is a deficient number, since it is larger than the sum of its proper divisors (1).

104215289 is an equidigital number, since it uses as much as digits as its factorization.

104215289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 104215289 is about 10208.5889818329. The cubic root of 104215289 is about 470.5912116408.

The spelling of 104215289 in words is "one hundred four million, two hundred fifteen thousand, two hundred eighty-nine".