217752102 has 12 divisors (see below), whose sum is σ = 471796260. Its totient is φ = 72584028.

The previous prime is 217752089. The next prime is 217752163. The reversal of 217752102 is 201257712.

217752102 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6048652 + ... + 6048687.

It is an arithmetic number, because the mean of its divisors is an integer number (39316355).

Almost surely, 2^217752102 is an apocalyptic number.

217752102 is an abundant number, since it is smaller than the sum of its proper divisors (254044158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

217752102 is a wasteful number, since it uses less digits than its factorization.

217752102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12097347 (or 12097344 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 217752102 is about 14756.4257867547. The cubic root of 217752102 is about 601.6179498090.

The spelling of 217752102 in words is "two hundred seventeen million, seven hundred fifty-two thousand, one hundred two".