217948102 has 8 divisors (see below), whose sum is σ = 330159312. Its totient is φ = 107895000.

The previous prime is 217948091. The next prime is 217948147. The reversal of 217948102 is 201849712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539274 + ... + 539677.

It is an arithmetic number, because the mean of its divisors is an integer number (41269914).

Almost surely, 2^217948102 is an apocalyptic number.

217948102 is a deficient number, since it is larger than the sum of its proper divisors (112211210).

217948102 is a wasteful number, since it uses less digits than its factorization.

217948102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079054.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 217948102 is about 14763.0654675782. The cubic root of 217948102 is about 601.7984023442.

The spelling of 217948102 in words is "two hundred seventeen million, nine hundred forty-eight thousand, one hundred two".