126038641 has 2 divisors, whose sum is σ = 126038642. Its totient is φ = 126038640.

The previous prime is 126038639. The next prime is 126038657. The reversal of 126038641 is 146830621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121088016 + 4950625 = 11004^2 + 2225^2 .

It is a cyclic number.

It is not a de Polignac number, because 126038641 - 2¹ = 126038639 is a prime.

Together with 126038639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (126036641) 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, 63019320 + 63019321.

It is an arithmetic number, because the mean of its divisors is an integer number (63019321).

Almost surely, 2^126038641 is an apocalyptic number.

It is an amenable number.

126038641 is a deficient number, since it is larger than the sum of its proper divisors (1).

126038641 is an equidigital number, since it uses as much as digits as its factorization.

126038641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 126038641 is about 11226.6932353209. The cubic root of 126038641 is about 501.3810366303.

The spelling of 126038641 in words is "one hundred twenty-six million, thirty-eight thousand, six hundred forty-one".