12077961 has 12 divisors (see below), whose sum is σ = 18733392. Its totient is φ = 6901608.

The previous prime is 12077959. The next prime is 12077981. The reversal of 12077961 is 16977021.

It is not a de Polignac number, because 12077961 - 2¹ = 12077959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12077951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40935 + ... + 41228.

It is an arithmetic number, because the mean of its divisors is an integer number (1561116).

Almost surely, 2^12077961 is an apocalyptic number.

It is an amenable number.

12077961 is a deficient number, since it is larger than the sum of its proper divisors (6655431).

12077961 is an equidigital number, since it uses as much as digits as its factorization.

12077961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82180 (or 82173 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 12077961 is about 3475.3360988543. The cubic root of 12077961 is about 229.4375735012.

The spelling of 12077961 in words is "twelve million, seventy-seven thousand, nine hundred sixty-one".