214530813 has 24 divisors (see below), whose sum is σ = 356947968. Its totient is φ = 121619232.

The previous prime is 214530809. The next prime is 214530817. The reversal of 214530813 is 318035412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (214530809) and next prime (214530817).

It is not a de Polignac number, because 214530813 - 2² = 214530809 is a prime.

It is a super-3 number, since 3×214530813³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214530817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5406 + ... + 21407.

It is an arithmetic number, because the mean of its divisors is an integer number (14872832).

Almost surely, 2^214530813 is an apocalyptic number.

It is an amenable number.

214530813 is a deficient number, since it is larger than the sum of its proper divisors (142417155).

214530813 is a wasteful number, since it uses less digits than its factorization.

214530813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26953 (or 26950 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 214530813 is about 14646.8704165771. The cubic root of 214530813 is about 598.6365456674.

The spelling of 214530813 in words is "two hundred fourteen million, five hundred thirty thousand, eight hundred thirteen".