12078371 has 4 divisors (see below), whose sum is σ = 12126744. Its totient is φ = 12030000.

The previous prime is 12078323. The next prime is 12078373. The reversal of 12078371 is 17387021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12078371 - 2¹⁰ = 12077347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12078373) 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 3 ways as a sum of consecutive naturals, for example, 23810 + ... + 24311.

It is an arithmetic number, because the mean of its divisors is an integer number (3031686).

Almost surely, 2^12078371 is an apocalyptic number.

12078371 is a deficient number, since it is larger than the sum of its proper divisors (48373).

12078371 is an equidigital number, since it uses as much as digits as its factorization.

12078371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48372.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 12078371 is about 3475.3950854543. The cubic root of 12078371 is about 229.4401696442.

The spelling of 12078371 in words is "twelve million, seventy-eight thousand, three hundred seventy-one".