12278014 has 16 divisors (see below), whose sum is σ = 21129696. Its totient is φ = 5241600.

The previous prime is 12278011. The next prime is 12278017. The reversal of 12278014 is 41087221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12278011) and next prime (12278017).

It is a self number, because there is not a number n which added to its sum of digits gives 12278014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12278011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2374 + ... + 5494.

It is an arithmetic number, because the mean of its divisors is an integer number (1320606).

Almost surely, 2^12278014 is an apocalyptic number.

12278014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12278014 is a deficient number, since it is larger than the sum of its proper divisors (8851682).

12278014 is a wasteful number, since it uses less digits than its factorization.

12278014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 12278014 is about 3503.9997146119. Note that the first 3 decimals coincide. The cubic root of 12278014 is about 230.6974043074.

The spelling of 12278014 in words is "twelve million, two hundred seventy-eight thousand, fourteen".