7350521 has 4 divisors (see below), whose sum is σ = 7529844. Its totient is φ = 7171200.

The previous prime is 7350509. The next prime is 7350523. The reversal of 7350521 is 1250537.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1250537 = 17 ⋅73561.

It can be written as a sum of positive squares in 2 ways, for example, as 3024121 + 4326400 = 1739^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 7350521 - 2¹⁰ = 7349497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7350523) 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 in 3 ways as a sum of consecutive naturals, for example, 89600 + ... + 89681.

It is an arithmetic number, because the mean of its divisors is an integer number (1882461).

Almost surely, 2^7350521 is an apocalyptic number.

It is an amenable number.

7350521 is a deficient number, since it is larger than the sum of its proper divisors (179323).

7350521 is a wasteful number, since it uses less digits than its factorization.

7350521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179322.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 7350521 is about 2711.1844275150. The cubic root of 7350521 is about 194.4342223984.

The spelling of 7350521 in words is "seven million, three hundred fifty thousand, five hundred twenty-one".