104511557 has 2 divisors, whose sum is σ = 104511558. Its totient is φ = 104511556.

The previous prime is 104511551. The next prime is 104511559. The reversal of 104511557 is 755115401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104325796 + 185761 = 10214^2 + 431^2 .

It is a cyclic number.

It is not a de Polignac number, because 104511557 - 2⁴ = 104511541 is a prime.

Together with 104511559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104511551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52255778 + 52255779.

It is an arithmetic number, because the mean of its divisors is an integer number (52255779).

Almost surely, 2^104511557 is an apocalyptic number.

It is an amenable number.

104511557 is a deficient number, since it is larger than the sum of its proper divisors (1).

104511557 is an equidigital number, since it uses as much as digits as its factorization.

104511557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3500, while the sum is 29.

The square root of 104511557 is about 10223.0894058499. The cubic root of 104511557 is about 471.0367291495.

Adding to 104511557 its reverse (755115401), we get a palindrome (859626958).

The spelling of 104511557 in words is "one hundred four million, five hundred eleven thousand, five hundred fifty-seven".