126906641 has 2 divisors, whose sum is σ = 126906642. Its totient is φ = 126906640.

The previous prime is 126906623. The next prime is 126906673. The reversal of 126906641 is 146609621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118374400 + 8532241 = 10880^2 + 2921^2 .

It is an emirp because it is prime and its reverse (146609621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126906641 is a prime.

It is a super-2 number, since 2×126906641² = 32210591059805762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126906691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63453320 + 63453321.

It is an arithmetic number, because the mean of its divisors is an integer number (63453321).

Almost surely, 2^126906641 is an apocalyptic number.

It is an amenable number.

126906641 is a deficient number, since it is larger than the sum of its proper divisors (1).

126906641 is an equidigital number, since it uses as much as digits as its factorization.

126906641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 126906641 is about 11265.2847722550. The cubic root of 126906641 is about 502.5293709885.

The spelling of 126906641 in words is "one hundred twenty-six million, nine hundred six thousand, six hundred forty-one".