217114023 has 16 divisors (see below), whose sum is σ = 337084416. Its totient is φ = 121723680.

The previous prime is 217114013. The next prime is 217114057. The reversal of 217114023 is 320411712.

It is not a de Polignac number, because 217114023 - 2¹⁶ = 217048487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217114003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96423 + ... + 98648.

It is an arithmetic number, because the mean of its divisors is an integer number (21067776).

Almost surely, 2^217114023 is an apocalyptic number.

217114023 is a deficient number, since it is larger than the sum of its proper divisors (119970393).

217114023 is a wasteful number, since it uses less digits than its factorization.

217114023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195134.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 217114023 is about 14734.7895471907. The cubic root of 217114023 is about 601.0297345115.

Adding to 217114023 its reverse (320411712), we get a palindrome (537525735).

The spelling of 217114023 in words is "two hundred seventeen million, one hundred fourteen thousand, twenty-three".