7521233 has 2 divisors, whose sum is σ = 7521234. Its totient is φ = 7521232.

The previous prime is 7521229. The next prime is 7521247. The reversal of 7521233 is 3321257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4870849 + 2650384 = 2207^2 + 1628^2 .

It is a cyclic number.

It is not a de Polignac number, because 7521233 - 2² = 7521229 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7521199 and 7521208.

It is not a weakly prime, because it can be changed into another prime (7521203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3760616 + 3760617.

It is an arithmetic number, because the mean of its divisors is an integer number (3760617).

Almost surely, 2^7521233 is an apocalyptic number.

It is an amenable number.

7521233 is a deficient number, since it is larger than the sum of its proper divisors (1).

7521233 is an equidigital number, since it uses as much as digits as its factorization.

7521233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 23.

The square root of 7521233 is about 2742.4866453640. The cubic root of 7521233 is about 195.9279288678.

The spelling of 7521233 in words is "seven million, five hundred twenty-one thousand, two hundred thirty-three".