104206254457 has 2 divisors, whose sum is σ = 104206254458. Its totient is φ = 104206254456.

The previous prime is 104206254443. The next prime is 104206254469. The reversal of 104206254457 is 754452602401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65231203216 + 38975051241 = 255404^2 + 197421^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104206254457 is a prime.

It is not a weakly prime, because it can be changed into another prime (104206254437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52103127228 + 52103127229.

It is an arithmetic number, because the mean of its divisors is an integer number (52103127229).

Almost surely, 2^104206254457 is an apocalyptic number.

It is an amenable number.

104206254457 is a deficient number, since it is larger than the sum of its proper divisors (1).

104206254457 is an equidigital number, since it uses as much as digits as its factorization.

104206254457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 268800, while the sum is 40.

Adding to 104206254457 its reverse (754452602401), we get a palindrome (858658856858).

The spelling of 104206254457 in words is "one hundred four billion, two hundred six million, two hundred fifty-four thousand, four hundred fifty-seven".