131783419 has 2 divisors, whose sum is σ = 131783420. Its totient is φ = 131783418.

The previous prime is 131783417. The next prime is 131783423. The reversal of 131783419 is 914387131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131783419 - 2¹ = 131783417 is a prime.

It is a super-3 number, since 3×131783419³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 131783417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (131783417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65891709 + 65891710.

It is an arithmetic number, because the mean of its divisors is an integer number (65891710).

Almost surely, 2^131783419 is an apocalyptic number.

131783419 is a deficient number, since it is larger than the sum of its proper divisors (1).

131783419 is an equidigital number, since it uses as much as digits as its factorization.

131783419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 37.

The square root of 131783419 is about 11479.6959454508. The cubic root of 131783419 is about 508.8857114905.

The spelling of 131783419 in words is "one hundred thirty-one million, seven hundred eighty-three thousand, four hundred nineteen".