201617129 has 8 divisors (see below), whose sum is σ = 233009280. Its totient is φ = 170872416.

The previous prime is 201617123. The next prime is 201617147. The reversal of 201617129 is 921716102.

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

It is a cyclic number.

It is not a de Polignac number, because 201617129 - 2¹⁶ = 201551593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201617123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161189 + ... + 162434.

It is an arithmetic number, because the mean of its divisors is an integer number (29126160).

Almost surely, 2^201617129 is an apocalyptic number.

It is an amenable number.

201617129 is a deficient number, since it is larger than the sum of its proper divisors (31392151).

201617129 is an equidigital number, since it uses as much as digits as its factorization.

201617129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323719.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 201617129 is about 14199.1946602615. The cubic root of 201617129 is about 586.3754897961.

The spelling of 201617129 in words is "two hundred one million, six hundred seventeen thousand, one hundred twenty-nine".