104155543125457 has 2 divisors, whose sum is σ = 104155543125458. Its totient is φ = 104155543125456.

The previous prime is 104155543125451. The next prime is 104155543125467. The reversal of 104155543125457 is 754521345551401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92646188333521 + 11509354791936 = 9625289^2 + 3392544^2 .

It is a cyclic number.

It is not a de Polignac number, because 104155543125457 - 2³¹ = 104153395641809 is a prime.

It is not a weakly prime, because it can be changed into another prime (104155543125451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52077771562728 + 52077771562729.

It is an arithmetic number, because the mean of its divisors is an integer number (52077771562729).

Almost surely, 2^{104155543125457} is an apocalyptic number.

It is an amenable number.

104155543125457 is a deficient number, since it is larger than the sum of its proper divisors (1).

104155543125457 is an equidigital number, since it uses as much as digits as its factorization.

104155543125457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400000, while the sum is 52.

Adding to 104155543125457 its reverse (754521345551401), we get a palindrome (858676888676858).

The spelling of 104155543125457 in words is "one hundred four trillion, one hundred fifty-five billion, five hundred forty-three million, one hundred twenty-five thousand, four hundred fifty-seven".