5721241 has 2 divisors, whose sum is σ = 5721242. Its totient is φ = 5721240.

The previous prime is 5721211. The next prime is 5721269. The reversal of 5721241 is 1421275.

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., 3841600 + 1879641 = 1960^2 + 1371^2 .

It is a cyclic number.

It is not a de Polignac number, because 5721241 - 2⁷ = 5721113 is a prime.

5721241 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5721211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2860620 + 2860621.

It is an arithmetic number, because the mean of its divisors is an integer number (2860621).

Almost surely, 2^5721241 is an apocalyptic number.

It is an amenable number.

5721241 is a deficient number, since it is larger than the sum of its proper divisors (1).

5721241 is an equidigital number, since it uses as much as digits as its factorization.

5721241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 560, while the sum is 22.

The square root of 5721241 is about 2391.9115786333. The cubic root of 5721241 is about 178.8532134120.

The spelling of 5721241 in words is "five million, seven hundred twenty-one thousand, two hundred forty-one".