7170121 has 24 divisors (see below), whose sum is σ = 8848224. Its totient is φ = 5785920.

The previous prime is 7170113. The next prime is 7170127. The reversal of 7170121 is 1210717.

It is not a de Polignac number, because 7170121 - 2³ = 7170113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7170127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86346 + ... + 86428.

It is an arithmetic number, because the mean of its divisors is an integer number (368676).

Almost surely, 2^7170121 is an apocalyptic number.

It is an amenable number.

7170121 is a deficient number, since it is larger than the sum of its proper divisors (1678103).

7170121 is a wasteful number, since it uses less digits than its factorization.

7170121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 7170121 is about 2677.7081618429. The cubic root of 7170121 is about 192.8303967874.

Adding to 7170121 its reverse (1210717), we get a palindrome (8380838).

The spelling of 7170121 in words is "seven million, one hundred seventy thousand, one hundred twenty-one".