7132121 has 2 divisors, whose sum is σ = 7132122. Its totient is φ = 7132120.

The previous prime is 7132117. The next prime is 7132123. The reversal of 7132121 is 1212317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4682896 + 2449225 = 2164^2 + 1565^2 .

It is a cyclic number.

It is not a de Polignac number, because 7132121 - 2² = 7132117 is a prime.

Together with 7132123, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7132121.

It is not a weakly prime, because it can be changed into another prime (7132123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3566060 + 3566061.

It is an arithmetic number, because the mean of its divisors is an integer number (3566061).

Almost surely, 2^7132121 is an apocalyptic number.

It is an amenable number.

7132121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7132121 is an equidigital number, since it uses as much as digits as its factorization.

7132121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84, while the sum is 17.

The square root of 7132121 is about 2670.6031154030. The cubic root of 7132121 is about 192.4891408953.

Adding to 7132121 its reverse (1212317), we get a palindrome (8344438).

The spelling of 7132121 in words is "seven million, one hundred thirty-two thousand, one hundred twenty-one".