13150531 has 2 divisors, whose sum is σ = 13150532. Its totient is φ = 13150530.

The previous prime is 13150513. The next prime is 13150567. The reversal of 13150531 is 13505131.

Together with previous prime (13150513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13150531 - 2⁵ = 13150499 is a prime.

It is a super-2 number, since 2×13150531² = 345872931163922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13150499 and 13150508.

It is not a weakly prime, because it can be changed into another prime (13150031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6575265 + 6575266.

It is an arithmetic number, because the mean of its divisors is an integer number (6575266).

Almost surely, 2^13150531 is an apocalyptic number.

13150531 is a deficient number, since it is larger than the sum of its proper divisors (1).

13150531 is an equidigital number, since it uses as much as digits as its factorization.

13150531 is an evil number, because the sum of its binary digits is even.

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

The square root of 13150531 is about 3626.3660874214. The cubic root of 13150531 is about 236.0375490862.

Adding to 13150531 its product of nonzero digits (225), we get a triangular number (13150756 = T₅₁₂₈).

Adding to 13150531 its reverse (13505131), we get a palindrome (26655662).

It can be divided in two parts, 13 and 150531, that added together give a square (150544 = 388²).

The spelling of 13150531 in words is "thirteen million, one hundred fifty thousand, five hundred thirty-one".