105178422149 has 2 divisors, whose sum is σ = 105178422150. Its totient is φ = 105178422148.

The previous prime is 105178422077. The next prime is 105178422233. The reversal of 105178422149 is 941224871501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68333619649 + 36844802500 = 261407^2 + 191950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105178422149 is a prime.

It is a super-2 number, since 2×105178422149² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105178422649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52589211074 + 52589211075.

It is an arithmetic number, because the mean of its divisors is an integer number (52589211075).

Almost surely, 2^105178422149 is an apocalyptic number.

It is an amenable number.

105178422149 is a deficient number, since it is larger than the sum of its proper divisors (1).

105178422149 is an equidigital number, since it uses as much as digits as its factorization.

105178422149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 105178422149 in words is "one hundred five billion, one hundred seventy-eight million, four hundred twenty-two thousand, one hundred forty-nine".