10521241 has 2 divisors, whose sum is σ = 10521242. Its totient is φ = 10521240.

The previous prime is 10521239. The next prime is 10521253. The reversal of 10521241 is 14212501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8433216 + 2088025 = 2904^2 + 1445^2 .

It is a cyclic number.

It is not a de Polignac number, because 10521241 - 2¹ = 10521239 is a prime.

It is a super-2 number, since 2×10521241² = 221393024360162, which contains 22 as substring.

Together with 10521239, it forms a pair of twin primes.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (10521221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5260620 + 5260621.

It is an arithmetic number, because the mean of its divisors is an integer number (5260621).

Almost surely, 2^10521241 is an apocalyptic number.

It is an amenable number.

10521241 is a deficient number, since it is larger than the sum of its proper divisors (1).

10521241 is an equidigital number, since it uses as much as digits as its factorization.

10521241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 10521241 is about 3243.6462507493. The cubic root of 10521241 is about 219.1235168481.

Adding to 10521241 its reverse (14212501), we get a palindrome (24733742).

The spelling of 10521241 in words is "ten million, five hundred twenty-one thousand, two hundred forty-one".