7241581 has 2 divisors, whose sum is σ = 7241582. Its totient is φ = 7241580.

The previous prime is 7241579. The next prime is 7241617. The reversal of 7241581 is 1851427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7241481 + 100 = 2691^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 7241581 - 2¹ = 7241579 is a prime.

It is a super-2 number, since 2×7241581² = 104880990759122, which contains 22 as substring.

Together with 7241579, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7241551) by changing a digit.

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 as a sum of consecutive naturals, namely, 3620790 + 3620791.

It is an arithmetic number, because the mean of its divisors is an integer number (3620791).

Almost surely, 2^7241581 is an apocalyptic number.

It is an amenable number.

7241581 is a deficient number, since it is larger than the sum of its proper divisors (1).

7241581 is an equidigital number, since it uses as much as digits as its factorization.

7241581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 28.

The square root of 7241581 is about 2691.0185803892. The cubic root of 7241581 is about 193.4688859783.

The spelling of 7241581 in words is "seven million, two hundred forty-one thousand, five hundred eighty-one".