126103427 has 2 divisors, whose sum is σ = 126103428. Its totient is φ = 126103426.

The previous prime is 126103423. The next prime is 126103429. The reversal of 126103427 is 724301621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126103427 - 2² = 126103423 is a prime.

It is a super-2 number, since 2×126103427² = 31804148602288658, which contains 22 as substring.

Together with 126103429, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 126103396 and 126103405.

It is not a weakly prime, because it can be changed into another prime (126103421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63051713 + 63051714.

It is an arithmetic number, because the mean of its divisors is an integer number (63051714).

Almost surely, 2^126103427 is an apocalyptic number.

126103427 is a deficient number, since it is larger than the sum of its proper divisors (1).

126103427 is an equidigital number, since it uses as much as digits as its factorization.

126103427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 126103427 is about 11229.5782200401. The cubic root of 126103427 is about 501.4669280354.

The spelling of 126103427 in words is "one hundred twenty-six million, one hundred three thousand, four hundred twenty-seven".