7361521 has 2 divisors, whose sum is σ = 7361522. Its totient is φ = 7361520.

The previous prime is 7361507. The next prime is 7361537. The reversal of 7361521 is 1251637.

7361521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6195121 + 1166400 = 2489^2 + 1080^2 .

It is a cyclic number.

It is not a de Polignac number, because 7361521 - 2⁹ = 7361009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7361551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3680760 + 3680761.

It is an arithmetic number, because the mean of its divisors is an integer number (3680761).

Almost surely, 2^7361521 is an apocalyptic number.

It is an amenable number.

7361521 is a deficient number, since it is larger than the sum of its proper divisors (1).

7361521 is an equidigital number, since it uses as much as digits as its factorization.

7361521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 25.

The square root of 7361521 is about 2713.2123027880. The cubic root of 7361521 is about 194.5311638462.

The spelling of 7361521 in words is "seven million, three hundred sixty-one thousand, five hundred twenty-one".