126836641 has 2 divisors, whose sum is σ = 126836642. Its totient is φ = 126836640.

The previous prime is 126836617. The next prime is 126836681. The reversal of 126836641 is 146638621.

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., 98704225 + 28132416 = 9935^2 + 5304^2 .

It is a cyclic number.

It is not a de Polignac number, because 126836641 - 2¹⁷ = 126705569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126836641.

It is not a weakly prime, because it can be changed into another prime (126836681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63418320 + 63418321.

It is an arithmetic number, because the mean of its divisors is an integer number (63418321).

Almost surely, 2^126836641 is an apocalyptic number.

It is an amenable number.

126836641 is a deficient number, since it is larger than the sum of its proper divisors (1).

126836641 is an equidigital number, since it uses as much as digits as its factorization.

126836641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

The square root of 126836641 is about 11262.1774537609. The cubic root of 126836641 is about 502.4369578429.

The spelling of 126836641 in words is "one hundred twenty-six million, eight hundred thirty-six thousand, six hundred forty-one".