201617223 has 4 divisors (see below), whose sum is σ = 268822968. Its totient is φ = 134411480.

The previous prime is 201617203. The next prime is 201617233. The reversal of 201617223 is 322716102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201617223 - 2⁶ = 201617159 is a prime.

It is a super-2 number, since 2×201617223² = 81299009220463458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201617193 and 201617202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201617203) 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 3 ways as a sum of consecutive naturals, for example, 33602868 + ... + 33602873.

It is an arithmetic number, because the mean of its divisors is an integer number (67205742).

Almost surely, 2^201617223 is an apocalyptic number.

201617223 is a deficient number, since it is larger than the sum of its proper divisors (67205745).

201617223 is an equidigital number, since it uses as much as digits as its factorization.

201617223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67205744.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 201617223 is about 14199.1979703080. The cubic root of 201617223 is about 586.3755809248.

The spelling of 201617223 in words is "two hundred one million, six hundred seventeen thousand, two hundred twenty-three".