131783623 has 2 divisors, whose sum is σ = 131783624. Its totient is φ = 131783622.

The previous prime is 131783611. The next prime is 131783633. The reversal of 131783623 is 326387131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131783623 - 2⁵ = 131783591 is a prime.

It is a super-2 number, since 2×131783623² = 34733846582012258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131783633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65891811 + 65891812.

It is an arithmetic number, because the mean of its divisors is an integer number (65891812).

Almost surely, 2^131783623 is an apocalyptic number.

131783623 is a deficient number, since it is larger than the sum of its proper divisors (1).

131783623 is an equidigital number, since it uses as much as digits as its factorization.

131783623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 131783623 is about 11479.7048307001. The cubic root of 131783623 is about 508.8859740745.

The spelling of 131783623 in words is "one hundred thirty-one million, seven hundred eighty-three thousand, six hundred twenty-three".