217094134 has 4 divisors (see below), whose sum is σ = 325641204. Its totient is φ = 108547066.

The previous prime is 217094113. The next prime is 217094149. The reversal of 217094134 is 431490712.

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

It is a junction number, because it is equal to n+sod(n) for n = 217094096 and 217094105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54273532 + ... + 54273535.

It is an arithmetic number, because the mean of its divisors is an integer number (81410301).

Almost surely, 2^217094134 is an apocalyptic number.

217094134 is a deficient number, since it is larger than the sum of its proper divisors (108547070).

217094134 is a wasteful number, since it uses less digits than its factorization.

217094134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108547069.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 217094134 is about 14734.1146323761. The cubic root of 217094134 is about 601.0113812591.

The spelling of 217094134 in words is "two hundred seventeen million, ninety-four thousand, one hundred thirty-four".