126776471 has 2 divisors, whose sum is σ = 126776472. Its totient is φ = 126776470.

The previous prime is 126776459. The next prime is 126776473. The reversal of 126776471 is 174677621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126776471 - 2¹⁰ = 126775447 is a prime.

It is a super-3 number, since 3×126776471³ (a number of 25 digits) contains 333 as substring.

Together with 126776473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126776473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63388235 + 63388236.

It is an arithmetic number, because the mean of its divisors is an integer number (63388236).

Almost surely, 2^126776471 is an apocalyptic number.

126776471 is a deficient number, since it is larger than the sum of its proper divisors (1).

126776471 is an equidigital number, since it uses as much as digits as its factorization.

126776471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98784, while the sum is 41.

The square root of 126776471 is about 11259.5058062066. The cubic root of 126776471 is about 502.3574949651.

The spelling of 126776471 in words is "one hundred twenty-six million, seven hundred seventy-six thousand, four hundred seventy-one".