216455314 has 4 divisors (see below), whose sum is σ = 324682974. Its totient is φ = 108227656.

The previous prime is 216455303. The next prime is 216455341. The reversal of 216455314 is 413554612.

It is a happy number.

216455314 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 132641289 + 83814025 = 11517^2 + 9155^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54113827 + ... + 54113830.

Almost surely, 2^216455314 is an apocalyptic number.

216455314 is a deficient number, since it is larger than the sum of its proper divisors (108227660).

216455314 is a wasteful number, since it uses less digits than its factorization.

216455314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108227659.

The product of its digits is 14400, while the sum is 31.

The square root of 216455314 is about 14712.4203991050. The cubic root of 216455314 is about 600.4212911574.

The spelling of 216455314 in words is "two hundred sixteen million, four hundred fifty-five thousand, three hundred fourteen".