7217133 has 32 divisors (see below), whose sum is σ = 12134400. Its totient is φ = 3706560.

The previous prime is 7217123. The next prime is 7217137. The reversal of 7217133 is 3317127.

It is not a de Polignac number, because 7217133 - 2¹³ = 7208941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7217137) 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, 36168 + ... + 36366.

It is an arithmetic number, because the mean of its divisors is an integer number (379200).

Almost surely, 2^7217133 is an apocalyptic number.

It is an amenable number.

7217133 is a deficient number, since it is larger than the sum of its proper divisors (4917267).

7217133 is a wasteful number, since it uses less digits than its factorization.

7217133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377.

The product of its digits is 882, while the sum is 24.

The square root of 7217133 is about 2686.4722220786. The cubic root of 7217133 is about 193.2509197557.

It can be divided in two parts, 72 and 17133, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 7217133 in words is "seven million, two hundred seventeen thousand, one hundred thirty-three".