7520245 has 8 divisors (see below), whose sum is σ = 9072216. Its totient is φ = 5984256.

The previous prime is 7520221. The next prime is 7520267. The reversal of 7520245 is 5420257.

It can be written as a sum of positive squares in 4 ways, for example, as 1726596 + 5793649 = 1314^2 + 2407^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7520245 - 2¹⁹ = 6995957 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2932 + ... + 4861.

It is an arithmetic number, because the mean of its divisors is an integer number (1134027).

Almost surely, 2^7520245 is an apocalyptic number.

It is an amenable number.

7520245 is a deficient number, since it is larger than the sum of its proper divisors (1551971).

7520245 is a wasteful number, since it uses less digits than its factorization.

7520245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7991.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 7520245 is about 2742.3065109502. The cubic root of 7520245 is about 195.9193493671.

The spelling of 7520245 in words is "seven million, five hundred twenty thousand, two hundred forty-five".