126856427 has 2 divisors, whose sum is σ = 126856428. Its totient is φ = 126856426.

The previous prime is 126856421. The next prime is 126856439. The reversal of 126856427 is 724658621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126856427 is a prime.

It is a super-3 number, since 3×126856427³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (126856421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63428213 + 63428214.

It is an arithmetic number, because the mean of its divisors is an integer number (63428214).

Almost surely, 2^126856427 is an apocalyptic number.

126856427 is a deficient number, since it is larger than the sum of its proper divisors (1).

126856427 is an equidigital number, since it uses as much as digits as its factorization.

126856427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 41.

The square root of 126856427 is about 11263.0558464388. The cubic root of 126856427 is about 502.4630825250.

The spelling of 126856427 in words is "one hundred twenty-six million, eight hundred fifty-six thousand, four hundred twenty-seven".