213814078 has 4 divisors (see below), whose sum is σ = 320721120. Its totient is φ = 106907038.

The previous prime is 213814039. The next prime is 213814079. The reversal of 213814078 is 870418312.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213814079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53453518 + ... + 53453521.

It is an arithmetic number, because the mean of its divisors is an integer number (80180280).

Almost surely, 2^213814078 is an apocalyptic number.

213814078 is a deficient number, since it is larger than the sum of its proper divisors (106907042).

213814078 is a wasteful number, since it uses less digits than its factorization.

213814078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106907041.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 213814078 is about 14622.3827743634. The cubic root of 213814078 is about 597.9691318615.

The spelling of 213814078 in words is "two hundred thirteen million, eight hundred fourteen thousand, seventy-eight".