126837251 has 2 divisors, whose sum is σ = 126837252. Its totient is φ = 126837250.

The previous prime is 126837181. The next prime is 126837253. The reversal of 126837251 is 152738621.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126837251 - 2²⁶ = 59728387 is a prime.

Together with 126837253, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (126837253) 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, 63418625 + 63418626.

It is an arithmetic number, because the mean of its divisors is an integer number (63418626).

Almost surely, 2^126837251 is an apocalyptic number.

126837251 is a deficient number, since it is larger than the sum of its proper divisors (1).

126837251 is an equidigital number, since it uses as much as digits as its factorization.

126837251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 126837251 is about 11262.2045355250. The cubic root of 126837251 is about 502.4377633043.

The spelling of 126837251 in words is "one hundred twenty-six million, eight hundred thirty-seven thousand, two hundred fifty-one".