105125905069 has 2 divisors, whose sum is σ = 105125905070. Its totient is φ = 105125905068.

The previous prime is 105125905067. The next prime is 105125905091. The reversal of 105125905069 is 960509521501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64929664969 + 40196240100 = 254813^2 + 200490^2 .

It is an emirp because it is prime and its reverse (960509521501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105125905069 - 2¹ = 105125905067 is a prime.

It is a super-2 number, since 2×105125905069² (a number of 23 digits) contains 22 as substring.

Together with 105125905067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105125905067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52562952534 + 52562952535.

It is an arithmetic number, because the mean of its divisors is an integer number (52562952535).

Almost surely, 2^105125905069 is an apocalyptic number.

It is an amenable number.

105125905069 is a deficient number, since it is larger than the sum of its proper divisors (1).

105125905069 is an equidigital number, since it uses as much as digits as its factorization.

105125905069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121500, while the sum is 43.

The spelling of 105125905069 in words is "one hundred five billion, one hundred twenty-five million, nine hundred five thousand, sixty-nine".