10243531 has 2 divisors, whose sum is σ = 10243532. Its totient is φ = 10243530.

The previous prime is 10243523. The next prime is 10243543. The reversal of 10243531 is 13534201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10243531 - 2³ = 10243523 is a prime.

It is a super-2 number, since 2×10243531² = 209859854695922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10243499 and 10243508.

It is not a weakly prime, because it can be changed into another prime (10243591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5121765 + 5121766.

It is an arithmetic number, because the mean of its divisors is an integer number (5121766).

Almost surely, 2^10243531 is an apocalyptic number.

10243531 is a deficient number, since it is larger than the sum of its proper divisors (1).

10243531 is an equidigital number, since it uses as much as digits as its factorization.

10243531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 10243531 is about 3200.5516711967. The cubic root of 10243531 is about 217.1783663775.

Adding to 10243531 its reverse (13534201), we get a palindrome (23777732).

The spelling of 10243531 in words is "ten million, two hundred forty-three thousand, five hundred thirty-one".