104457 has 4 divisors (see below), whose sum is σ = 139280. Its totient is φ = 69636.

The previous prime is 104417. The next prime is 104459. The reversal of 104457 is 754401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 754401 = 3 ⋅251467.

It is not a de Polignac number, because 104457 - 2⁶ = 104393 is a prime.

It is a super-2 number, since 2×104457² = 21822529698, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104459) 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, 17407 + ... + 17412.

It is an arithmetic number, because the mean of its divisors is an integer number (34820).

2¹⁰⁴⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

104457 is a deficient number, since it is larger than the sum of its proper divisors (34823).

104457 is an equidigital number, since it uses as much as digits as its factorization.

104457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34822.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 104457 is about 323.1980816775. The cubic root of 104457 is about 47.0954751537.

Adding to 104457 its reverse (754401), we get a palindrome (858858).

It can be divided in two parts, 104 and 457, that added together give a triangular number (561 = T₃₃).

The spelling of 104457 in words is "one hundred four thousand, four hundred fifty-seven".