10531513 has 2 divisors, whose sum is σ = 10531514. Its totient is φ = 10531512.

The previous prime is 10531457. The next prime is 10531519. The reversal of 10531513 is 31513501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10156969 + 374544 = 3187^2 + 612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10531513 is a prime.

It is a super-2 number, since 2×10531513² = 221825532138338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10531519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5265756 + 5265757.

It is an arithmetic number, because the mean of its divisors is an integer number (5265757).

Almost surely, 2^10531513 is an apocalyptic number.

It is an amenable number.

10531513 is a deficient number, since it is larger than the sum of its proper divisors (1).

10531513 is an equidigital number, since it uses as much as digits as its factorization.

10531513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 10531513 is about 3245.2292677098. The cubic root of 10531513 is about 219.1948045304.

The spelling of 10531513 in words is "ten million, five hundred thirty-one thousand, five hundred thirteen".