217152039 has 32 divisors (see below), whose sum is σ = 327075840. Its totient is φ = 127150848.

The previous prime is 217152011. The next prime is 217152041. The reversal of 217152039 is 930251712.

It is not a de Polignac number, because 217152039 - 2¹¹ = 217149991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 217151997 and 217152015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217152049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208482 + ... + 209520.

It is an arithmetic number, because the mean of its divisors is an integer number (10221120).

Almost surely, 2^217152039 is an apocalyptic number.

217152039 is a deficient number, since it is larger than the sum of its proper divisors (109923801).

217152039 is a wasteful number, since it uses less digits than its factorization.

217152039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 217152039 is about 14736.0794989712. The cubic root of 217152039 is about 601.0648119524.

The spelling of 217152039 in words is "two hundred seventeen million, one hundred fifty-two thousand, thirty-nine".