104861557 has 4 divisors (see below), whose sum is σ = 104935180. Its totient is φ = 104787936.

The previous prime is 104861527. The next prime is 104861567. The reversal of 104861557 is 755168401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57168721 + 47692836 = 7561^2 + 6906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104861557 is a prime.

It is a super-2 number, since 2×104861557² = 21991892272928498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104861527) 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, 34632 + ... + 37537.

It is an arithmetic number, because the mean of its divisors is an integer number (26233795).

Almost surely, 2^104861557 is an apocalyptic number.

It is an amenable number.

104861557 is a deficient number, since it is larger than the sum of its proper divisors (73623).

104861557 is an equidigital number, since it uses as much as digits as its factorization.

104861557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73622.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 104861557 is about 10240.1932110678. The cubic root of 104861557 is about 471.5619634378.

The spelling of 104861557 in words is "one hundred four million, eight hundred sixty-one thousand, five hundred fifty-seven".