8135450149 has 2 divisors, whose sum is σ = 8135450150. Its totient is φ = 8135450148.

The previous prime is 8135450087. The next prime is 8135450173. The reversal of 8135450149 is 9410545318.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5148062500 + 2987387649 = 71750^2 + 54657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8135450149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8135450189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4067725074 + 4067725075.

It is an arithmetic number, because the mean of its divisors is an integer number (4067725075).

Almost surely, 2^8135450149 is an apocalyptic number.

It is an amenable number.

8135450149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8135450149 is an equidigital number, since it uses as much as digits as its factorization.

8135450149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 8135450149 is about 90196.7302567005. The cubic root of 8135450149 is about 2011.2244009837.

The spelling of 8135450149 in words is "eight billion, one hundred thirty-five million, four hundred fifty thousand, one hundred forty-nine".