314221918 has 4 divisors (see below), whose sum is σ = 471332880. Its totient is φ = 157110958.

The previous prime is 314221907. The next prime is 314221951. The reversal of 314221918 is 819122413.

314221918 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 314221918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78555478 + ... + 78555481.

It is an arithmetic number, because the mean of its divisors is an integer number (117833220).

Almost surely, 2^314221918 is an apocalyptic number.

314221918 is a deficient number, since it is larger than the sum of its proper divisors (157110962).

314221918 is a wasteful number, since it uses less digits than its factorization.

314221918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157110961.

The product of its digits is 3456, while the sum is 31.

The square root of 314221918 is about 17726.3058193184. The cubic root of 314221918 is about 679.8485230645.

The spelling of 314221918 in words is "three hundred fourteen million, two hundred twenty-one thousand, nine hundred eighteen".