131244193 has 2 divisors, whose sum is σ = 131244194. Its totient is φ = 131244192.

The previous prime is 131244151. The next prime is 131244203. The reversal of 131244193 is 391442131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131056704 + 187489 = 11448^2 + 433^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131244193 is a prime.

It is not a weakly prime, because it can be changed into another prime (131244133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65622096 + 65622097.

It is an arithmetic number, because the mean of its divisors is an integer number (65622097).

Almost surely, 2^131244193 is an apocalyptic number.

It is an amenable number.

131244193 is a deficient number, since it is larger than the sum of its proper divisors (1).

131244193 is an equidigital number, since it uses as much as digits as its factorization.

131244193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 131244193 is about 11456.1857963285. The cubic root of 131244193 is about 508.1906834224.

The spelling of 131244193 in words is "one hundred thirty-one million, two hundred forty-four thousand, one hundred ninety-three".