12154167188729 has 2 divisors, whose sum is σ = 12154167188730. Its totient is φ = 12154167188728.

The previous prime is 12154167188627. The next prime is 12154167188731. The reversal of 12154167188729 is 92788176145121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11203245765625 + 950921423104 = 3347125^2 + 975152^2 .

It is an emirp because it is prime and its reverse (92788176145121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12154167188729 - 2⁸ = 12154167188473 is a prime.

Together with 12154167188731, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12154167088729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6077083594364 + 6077083594365.

It is an arithmetic number, because the mean of its divisors is an integer number (6077083594365).

Almost surely, 2^{12154167188729} is an apocalyptic number.

It is an amenable number.

12154167188729 is a deficient number, since it is larger than the sum of its proper divisors (1).

12154167188729 is an equidigital number, since it uses as much as digits as its factorization.

12154167188729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 62.

The spelling of 12154167188729 in words is "twelve trillion, one hundred fifty-four billion, one hundred sixty-seven million, one hundred eighty-eight thousand, seven hundred twenty-nine".