131683493 has 2 divisors, whose sum is σ = 131683494. Its totient is φ = 131683492.

The previous prime is 131683483. The next prime is 131683499. The reversal of 131683493 is 394386131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107702884 + 23980609 = 10378^2 + 4897^2 .

It is an emirp because it is prime and its reverse (394386131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131683493 - 2⁴ = 131683477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131683499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65841746 + 65841747.

It is an arithmetic number, because the mean of its divisors is an integer number (65841747).

Almost surely, 2^131683493 is an apocalyptic number.

It is an amenable number.

131683493 is a deficient number, since it is larger than the sum of its proper divisors (1).

131683493 is an equidigital number, since it uses as much as digits as its factorization.

131683493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The square root of 131683493 is about 11475.3428271229. The cubic root of 131683493 is about 508.7570565299.

It can be divided in two parts, 13168 and 3493, that added together give a palindrome (16661).

The spelling of 131683493 in words is "one hundred thirty-one million, six hundred eighty-three thousand, four hundred ninety-three".