131212183 has 2 divisors, whose sum is σ = 131212184. Its totient is φ = 131212182.

The previous prime is 131212111. The next prime is 131212199. The reversal of 131212183 is 381212131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131212183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131219183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65606091 + 65606092.

It is an arithmetic number, because the mean of its divisors is an integer number (65606092).

Almost surely, 2^131212183 is an apocalyptic number.

131212183 is a deficient number, since it is larger than the sum of its proper divisors (1).

131212183 is an equidigital number, since it uses as much as digits as its factorization.

131212183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 22.

The square root of 131212183 is about 11454.7886492942. The cubic root of 131212183 is about 508.1493647525.

The spelling of 131212183 in words is "one hundred thirty-one million, two hundred twelve thousand, one hundred eighty-three".