214354405 has 8 divisors (see below), whose sum is σ = 258104952. Its totient is φ = 170897088.

The previous prime is 214354381. The next prime is 214354471. The reversal of 214354405 is 504453412.

It can be written as a sum of positive squares in 4 ways, for example, as 131744484 + 82609921 = 11478^2 + 9089^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 214354405 - 2¹⁹ = 213830117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71694 + ... + 74623.

It is an arithmetic number, because the mean of its divisors is an integer number (32263119).

Almost surely, 2^214354405 is an apocalyptic number.

It is an amenable number.

214354405 is a deficient number, since it is larger than the sum of its proper divisors (43750547).

214354405 is a wasteful number, since it uses less digits than its factorization.

214354405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146615.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 214354405 is about 14640.8471407907. The cubic root of 214354405 is about 598.4724150335.

The spelling of 214354405 in words is "two hundred fourteen million, three hundred fifty-four thousand, four hundred five".