214281813 has 8 divisors (see below), whose sum is σ = 286157376. Its totient is φ = 142630400.

The previous prime is 214281811. The next prime is 214281839. The reversal of 214281813 is 318182412.

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 214281813 - 2¹ = 214281811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214281811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53793 + ... + 57638.

It is an arithmetic number, because the mean of its divisors is an integer number (35769672).

Almost surely, 2^214281813 is an apocalyptic number.

It is an amenable number.

214281813 is a deficient number, since it is larger than the sum of its proper divisors (71875563).

214281813 is a wasteful number, since it uses less digits than its factorization.

214281813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112075.

The product of its digits is 3072, while the sum is 30.

The square root of 214281813 is about 14638.3678393460. The cubic root of 214281813 is about 598.4048490249.

The spelling of 214281813 in words is "two hundred fourteen million, two hundred eighty-one thousand, eight hundred thirteen".