12134507157 has 8 divisors (see below), whose sum is σ = 17977047680. Its totient is φ = 8089671420.

The previous prime is 12134507137. The next prime is 12134507159. The reversal of 12134507157 is 75170543121.

12134507157 is a `hidden beast` number, since 1 + 2 + 134 + 507 + 15 + 7 = 666.

12134507157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12134507157 - 2⁶ = 12134507093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12134507159) 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 in 7 ways as a sum of consecutive naturals, for example, 224713069 + ... + 224713122.

It is an arithmetic number, because the mean of its divisors is an integer number (2247130960).

Almost surely, 2^12134507157 is an apocalyptic number.

It is an amenable number.

12134507157 is a deficient number, since it is larger than the sum of its proper divisors (5842540523).

12134507157 is an equidigital number, since it uses as much as digits as its factorization.

12134507157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449426200 (or 449426194 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

It can be divided in two parts, 121 and 34507157, that added together give a triangular number (34507278 = T₈₃₀₇).

The spelling of 12134507157 in words is "twelve billion, one hundred thirty-four million, five hundred seven thousand, one hundred fifty-seven".