217000152 has 48 divisors (see below), whose sum is σ = 588584880. Its totient is φ = 72225600.

The previous prime is 217000151. The next prime is 217000163. The reversal of 217000152 is 251000712.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217000151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57277 + ... + 60947.

It is an arithmetic number, because the mean of its divisors is an integer number (12262185).

Almost surely, 2^217000152 is an apocalyptic number.

It is an amenable number.

217000152 is an abundant number, since it is smaller than the sum of its proper divisors (371584728).

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

217000152 is a wasteful number, since it uses less digits than its factorization.

217000152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4504 (or 4497 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 217000152 is about 14730.9250218715. The cubic root of 217000152 is about 600.9246409997.

Adding to 217000152 its reverse (251000712), we get a palindrome (468000864).

The spelling of 217000152 in words is "two hundred seventeen million, one hundred fifty-two", and thus it is an aban number.