11967129 has 8 divisors (see below), whose sum is σ = 17729120. Its totient is φ = 7978068.

The previous prime is 11967119. The next prime is 11967139. The reversal of 11967129 is 92176911.

It is an interprime number because it is at equal distance from previous prime (11967119) and next prime (11967139).

It is not a de Polignac number, because 11967129 - 2⁵ = 11967097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11967093 and 11967102.

It is not an unprimeable number, because it can be changed into a prime (11967119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221587 + ... + 221640.

It is an arithmetic number, because the mean of its divisors is an integer number (2216140).

Almost surely, 2^11967129 is an apocalyptic number.

It is an amenable number.

11967129 is a deficient number, since it is larger than the sum of its proper divisors (5761991).

11967129 is an equidigital number, since it uses as much as digits as its factorization.

11967129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443236 (or 443230 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 11967129 is about 3459.3538413987. The cubic root of 11967129 is about 228.7336134459.

The spelling of 11967129 in words is "eleven million, nine hundred sixty-seven thousand, one hundred twenty-nine".