104457581 has 2 divisors, whose sum is σ = 104457582. Its totient is φ = 104457580.

The previous prime is 104457517. The next prime is 104457593. The reversal of 104457581 is 185754401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81090025 + 23367556 = 9005^2 + 4834^2 .

It is a cyclic number.

It is not a de Polignac number, because 104457581 - 2⁶ = 104457517 is a prime.

It is a super-2 number, since 2×104457581² = 21822772456743122, 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 (104457511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52228790 + 52228791.

It is an arithmetic number, because the mean of its divisors is an integer number (52228791).

Almost surely, 2^104457581 is an apocalyptic number.

It is an amenable number.

104457581 is a deficient number, since it is larger than the sum of its proper divisors (1).

104457581 is an equidigital number, since it uses as much as digits as its factorization.

104457581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 104457581 is about 10220.4491584274. The cubic root of 104457581 is about 470.9556247007.

The spelling of 104457581 in words is "one hundred four million, four hundred fifty-seven thousand, five hundred eighty-one".