7521049 has 2 divisors, whose sum is σ = 7521050. Its totient is φ = 7521048.

The previous prime is 7521013. The next prime is 7521053. The reversal of 7521049 is 9401257.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4545424 + 2975625 = 2132^2 + 1725^2 .

It is a cyclic number.

It is not a de Polignac number, because 7521049 - 2⁷ = 7520921 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7521079) 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 as a sum of consecutive naturals, namely, 3760524 + 3760525.

It is an arithmetic number, because the mean of its divisors is an integer number (3760525).

Almost surely, 2^7521049 is an apocalyptic number.

It is an amenable number.

7521049 is a deficient number, since it is larger than the sum of its proper divisors (1).

7521049 is an equidigital number, since it uses as much as digits as its factorization.

7521049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 7521049 is about 2742.4530989609. The cubic root of 7521049 is about 195.9263311230.

The spelling of 7521049 in words is "seven million, five hundred twenty-one thousand, forty-nine".