126983819 has 2 divisors, whose sum is σ = 126983820. Its totient is φ = 126983818.

The previous prime is 126983803. The next prime is 126983849. The reversal of 126983819 is 918389621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126983819 - 2⁴ = 126983803 is a prime.

It is a super-2 number, since 2×126983819² = 32249780575649522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126983849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63491909 + 63491910.

It is an arithmetic number, because the mean of its divisors is an integer number (63491910).

Almost surely, 2^126983819 is an apocalyptic number.

126983819 is a deficient number, since it is larger than the sum of its proper divisors (1).

126983819 is an equidigital number, since it uses as much as digits as its factorization.

126983819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 47.

The square root of 126983819 is about 11268.7097309319. The cubic root of 126983819 is about 502.6312210624.

The spelling of 126983819 in words is "one hundred twenty-six million, nine hundred eighty-three thousand, eight hundred nineteen".