131875213 has 2 divisors, whose sum is σ = 131875214. Its totient is φ = 131875212.

The previous prime is 131875199. The next prime is 131875223. The reversal of 131875213 is 312578131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93954249 + 37920964 = 9693^2 + 6158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131875213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131875223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65937606 + 65937607.

It is an arithmetic number, because the mean of its divisors is an integer number (65937607).

Almost surely, 2^131875213 is an apocalyptic number.

It is an amenable number.

131875213 is a deficient number, since it is larger than the sum of its proper divisors (1).

131875213 is an equidigital number, since it uses as much as digits as its factorization.

131875213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 131875213 is about 11483.6933518794. The cubic root of 131875213 is about 509.0038391822.

The spelling of 131875213 in words is "one hundred thirty-one million, eight hundred seventy-five thousand, two hundred thirteen".