104066261 has 4 divisors (see below), whose sum is σ = 112071372. Its totient is φ = 96061152.

The previous prime is 104066257. The next prime is 104066273. The reversal of 104066261 is 162660401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162660401 = 3407 ⋅47743.

It can be written as a sum of positive squares in 2 ways, for example, as 54982225 + 49084036 = 7415^2 + 7006^2 .

It is a cyclic number.

It is not a de Polignac number, because 104066261 - 2² = 104066257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104066261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104066251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4002536 + ... + 4002561.

It is an arithmetic number, because the mean of its divisors is an integer number (28017843).

Almost surely, 2^104066261 is an apocalyptic number.

It is an amenable number.

104066261 is a deficient number, since it is larger than the sum of its proper divisors (8005111).

104066261 is an equidigital number, since it uses as much as digits as its factorization.

104066261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8005110.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 104066261 is about 10201.2872226989. The cubic root of 104066261 is about 470.3667892820.

The spelling of 104066261 in words is "one hundred four million, sixty-six thousand, two hundred sixty-one".