131202187 has 2 divisors, whose sum is σ = 131202188. Its totient is φ = 131202186.

The previous prime is 131202151. The next prime is 131202263. The reversal of 131202187 is 781202131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (781202131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131202187 - 2⁷ = 131202059 is a prime.

It is not a weakly prime, because it can be changed into another prime (131205187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65601093 + 65601094.

It is an arithmetic number, because the mean of its divisors is an integer number (65601094).

Almost surely, 2^131202187 is an apocalyptic number.

131202187 is a deficient number, since it is larger than the sum of its proper divisors (1).

131202187 is an equidigital number, since it uses as much as digits as its factorization.

131202187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 131202187 is about 11454.3523169143. The cubic root of 131202187 is about 508.1364604883.

The spelling of 131202187 in words is "one hundred thirty-one million, two hundred two thousand, one hundred eighty-seven".