217416142 has 16 divisors (see below), whose sum is σ = 332013600. Its totient is φ = 106761600.

The previous prime is 217416097. The next prime is 217416151. The reversal of 217416142 is 241614712.

It is a self number, because there is not a number n which added to its sum of digits gives 217416142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22834 + ... + 30922.

It is an arithmetic number, because the mean of its divisors is an integer number (20750850).

Almost surely, 2^217416142 is an apocalyptic number.

217416142 is a deficient number, since it is larger than the sum of its proper divisors (114597458).

217416142 is a wasteful number, since it uses less digits than its factorization.

217416142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8331.

The product of its digits is 2688, while the sum is 28.

The square root of 217416142 is about 14745.0378771979. The cubic root of 217416142 is about 601.3083873894.

The spelling of 217416142 in words is "two hundred seventeen million, four hundred sixteen thousand, one hundred forty-two".