3136531 has 2 divisors, whose sum is σ = 3136532. Its totient is φ = 3136530.

The previous prime is 3136513. The next prime is 3136543. The reversal of 3136531 is 1356313.

Together with previous prime (3136513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3136531 - 2⁷ = 3136403 is a prime.

It is a super-2 number, since 2×3136531² = 19675653427922, which contains 22 as substring.

3136531 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3136561) 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, 1568265 + 1568266.

It is an arithmetic number, because the mean of its divisors is an integer number (1568266).

Almost surely, 2^3136531 is an apocalyptic number.

3136531 is a deficient number, since it is larger than the sum of its proper divisors (1).

3136531 is an equidigital number, since it uses as much as digits as its factorization.

3136531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 22.

The square root of 3136531 is about 1771.0254091910. The cubic root of 3136531 is about 146.3804893774.

It can be divided in two parts, 31365 and 31, that multiplied together give a triangular number (972315 = T₁₃₉₄).

The spelling of 3136531 in words is "three million, one hundred thirty-six thousand, five hundred thirty-one".