105455615485109 has 2 divisors, whose sum is σ = 105455615485110. Its totient is φ = 105455615485108.

The previous prime is 105455615485081. The next prime is 105455615485111. The reversal of 105455615485109 is 901584516554501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99282850390084 + 6172765095025 = 9964078^2 + 2484505^2 .

It is a cyclic number.

It is not a de Polignac number, because 105455615485109 - 2⁴⁴ = 87863429440693 is a prime.

It is a super-2 number, since 2×105455615485109² (a number of 29 digits) contains 22 as substring.

Together with 105455615485111, 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 (105455615481109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52727807742554 + 52727807742555.

It is an arithmetic number, because the mean of its divisors is an integer number (52727807742555).

Almost surely, 2^{105455615485109} is an apocalyptic number.

It is an amenable number.

105455615485109 is a deficient number, since it is larger than the sum of its proper divisors (1).

105455615485109 is an equidigital number, since it uses as much as digits as its factorization.

105455615485109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600000, while the sum is 59.

The spelling of 105455615485109 in words is "one hundred five trillion, four hundred fifty-five billion, six hundred fifteen million, four hundred eighty-five thousand, one hundred nine".