104042400169 has 2 divisors, whose sum is σ = 104042400170. Its totient is φ = 104042400168.

The previous prime is 104042400097. The next prime is 104042400193. The reversal of 104042400169 is 961004240401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90676265625 + 13366134544 = 301125^2 + 115612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104042400169 is a prime.

It is a super-2 number, since 2×104042400169² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 104042400169.

It is not a weakly prime, because it can be changed into another prime (104042400199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52021200084 + 52021200085.

It is an arithmetic number, because the mean of its divisors is an integer number (52021200085).

Almost surely, 2^104042400169 is an apocalyptic number.

It is an amenable number.

104042400169 is a deficient number, since it is larger than the sum of its proper divisors (1).

104042400169 is an equidigital number, since it uses as much as digits as its factorization.

104042400169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 104042400169 in words is "one hundred four billion, forty-two million, four hundred thousand, one hundred sixty-nine".