126719693 has 2 divisors, whose sum is σ = 126719694. Its totient is φ = 126719692.

The previous prime is 126719687. The next prime is 126719699. The reversal of 126719693 is 396917621.

It is a balanced prime because it is at equal distance from previous prime (126719687) and next prime (126719699).

It can be written as a sum of positive squares in only one way, i.e., 109893289 + 16826404 = 10483^2 + 4102^2 .

It is a cyclic number.

It is not a de Polignac number, because 126719693 - 2⁶ = 126719629 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126719699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63359846 + 63359847.

It is an arithmetic number, because the mean of its divisors is an integer number (63359847).

Almost surely, 2^126719693 is an apocalyptic number.

It is an amenable number.

126719693 is a deficient number, since it is larger than the sum of its proper divisors (1).

126719693 is an equidigital number, since it uses as much as digits as its factorization.

126719693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 44.

The square root of 126719693 is about 11256.9841876055. The cubic root of 126719693 is about 502.2824886363.

The spelling of 126719693 in words is "one hundred twenty-six million, seven hundred nineteen thousand, six hundred ninety-three".