104932781 has 2 divisors, whose sum is σ = 104932782. Its totient is φ = 104932780.

The previous prime is 104932753. The next prime is 104932819. The reversal of 104932781 is 187239401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104734756 + 198025 = 10234^2 + 445^2 .

It is a cyclic number.

It is not a de Polignac number, because 104932781 - 2¹⁴ = 104916397 is a prime.

It is a super-2 number, since 2×104932781² = 22021777056787922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104932741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52466390 + 52466391.

It is an arithmetic number, because the mean of its divisors is an integer number (52466391).

Almost surely, 2^104932781 is an apocalyptic number.

It is an amenable number.

104932781 is a deficient number, since it is larger than the sum of its proper divisors (1).

104932781 is an equidigital number, since it uses as much as digits as its factorization.

104932781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 104932781 is about 10243.6702895007. The cubic root of 104932781 is about 471.6687039469.

The spelling of 104932781 in words is "one hundred four million, nine hundred thirty-two thousand, seven hundred eighty-one".