104631557 has 4 divisors (see below), whose sum is σ = 106064940. Its totient is φ = 103198176.

The previous prime is 104631533. The next prime is 104631563. The reversal of 104631557 is 755136401.

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 29964676 + 74666881 = 5474^2 + 8641^2 .

It is a cyclic number.

It is not a de Polignac number, because 104631557 - 2¹² = 104627461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104631517) 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, 716582 + ... + 716727.

It is an arithmetic number, because the mean of its divisors is an integer number (26516235).

Almost surely, 2^104631557 is an apocalyptic number.

It is an amenable number.

104631557 is a deficient number, since it is larger than the sum of its proper divisors (1433383).

104631557 is an equidigital number, since it uses as much as digits as its factorization.

104631557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433382.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 104631557 is about 10228.9567894287. The cubic root of 104631557 is about 471.2169413964.

Adding to 104631557 its reverse (755136401), we get a palindrome (859767958).

The spelling of 104631557 in words is "one hundred four million, six hundred thirty-one thousand, five hundred fifty-seven".