7552121 has 2 divisors, whose sum is σ = 7552122. Its totient is φ = 7552120.

The previous prime is 7552109. The next prime is 7552123. The reversal of 7552121 is 1212557.

It is a happy number.

7552121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7507600 + 44521 = 2740^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 7552121 - 2²² = 3357817 is a prime.

Together with 7552123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7552123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3776060 + 3776061.

It is an arithmetic number, because the mean of its divisors is an integer number (3776061).

Almost surely, 2^7552121 is an apocalyptic number.

It is an amenable number.

7552121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7552121 is an equidigital number, since it uses as much as digits as its factorization.

7552121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 700, while the sum is 23.

The square root of 7552121 is about 2748.1122611713. The cubic root of 7552121 is about 196.1957730821.

Adding to 7552121 its reverse (1212557), we get a palindrome (8764678).

The spelling of 7552121 in words is "seven million, five hundred fifty-two thousand, one hundred twenty-one".