10315531 has 2 divisors, whose sum is σ = 10315532. Its totient is φ = 10315530.

The previous prime is 10315483. The next prime is 10315567. The reversal of 10315531 is 13551301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10315531 - 2¹⁵ = 10282763 is a prime.

It is a super-2 number, since 2×10315531² = 212820359623922, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 10315499 and 10315508.

It is not a weakly prime, because it can be changed into another prime (10315031) 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, 5157765 + 5157766.

It is an arithmetic number, because the mean of its divisors is an integer number (5157766).

Almost surely, 2^10315531 is an apocalyptic number.

10315531 is a deficient number, since it is larger than the sum of its proper divisors (1).

10315531 is an equidigital number, since it uses as much as digits as its factorization.

10315531 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 10315531 is about 3211.7800360548. The cubic root of 10315531 is about 217.6860151741.

Adding to 10315531 its reverse (13551301), we get a palindrome (23866832).

The spelling of 10315531 in words is "ten million, three hundred fifteen thousand, five hundred thirty-one".