104661281 has 2 divisors, whose sum is σ = 104661282. Its totient is φ = 104661280.

The previous prime is 104661223. The next prime is 104661289. The reversal of 104661281 is 182166401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100000000 + 4661281 = 10000^2 + 2159^2 .

It is a cyclic number.

It is not a de Polignac number, because 104661281 - 2¹⁸ = 104399137 is a prime.

It is a super-2 number, since 2×104661281² = 21907967481121922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (104661289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52330640 + 52330641.

It is an arithmetic number, because the mean of its divisors is an integer number (52330641).

Almost surely, 2^104661281 is an apocalyptic number.

It is an amenable number.

104661281 is a deficient number, since it is larger than the sum of its proper divisors (1).

104661281 is an equidigital number, since it uses as much as digits as its factorization.

104661281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 104661281 is about 10230.4096203427. The cubic root of 104661281 is about 471.2615586758.

The spelling of 104661281 in words is "one hundred four million, six hundred sixty-one thousand, two hundred eighty-one".