126231437 has 2 divisors, whose sum is σ = 126231438. Its totient is φ = 126231436.

The previous prime is 126231361. The next prime is 126231439. The reversal of 126231437 is 734132621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120538441 + 5692996 = 10979^2 + 2386^2 .

It is a cyclic number.

It is not a de Polignac number, because 126231437 - 2⁸ = 126231181 is a prime.

Together with 126231439, 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 (126231439) 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, 63115718 + 63115719.

It is an arithmetic number, because the mean of its divisors is an integer number (63115719).

Almost surely, 2^126231437 is an apocalyptic number.

It is an amenable number.

126231437 is a deficient number, since it is larger than the sum of its proper divisors (1).

126231437 is an equidigital number, since it uses as much as digits as its factorization.

126231437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 29.

The square root of 126231437 is about 11235.2764540976. The cubic root of 126231437 is about 501.6365535408.

The spelling of 126231437 in words is "one hundred twenty-six million, two hundred thirty-one thousand, four hundred thirty-seven".