71278214 has 8 divisors (see below), whose sum is σ = 122191248. Its totient is φ = 30547800.

The previous prime is 71278211. The next prime is 71278217. The reversal of 71278214 is 41287217.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71278211) and next prime (71278217).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71278211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2545637 + ... + 2545664.

It is an arithmetic number, because the mean of its divisors is an integer number (15273906).

Almost surely, 2^71278214 is an apocalyptic number.

71278214 is a deficient number, since it is larger than the sum of its proper divisors (50913034).

71278214 is a wasteful number, since it uses less digits than its factorization.

71278214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091310.

The product of its digits is 6272, while the sum is 32.

The square root of 71278214 is about 8442.6425957753. The cubic root of 71278214 is about 414.6219308043.

It can be divided in two parts, 7 and 1278214, that multiplied together give a palindrome (8947498).

The spelling of 71278214 in words is "seventy-one million, two hundred seventy-eight thousand, two hundred fourteen".