126220741 has 2 divisors, whose sum is σ = 126220742. Its totient is φ = 126220740.

The previous prime is 126220739. The next prime is 126220751. The reversal of 126220741 is 147022621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124411716 + 1809025 = 11154^2 + 1345^2 .

It is a cyclic number.

It is not a de Polignac number, because 126220741 - 2¹ = 126220739 is a prime.

Together with 126220739, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126220751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63110370 + 63110371.

It is an arithmetic number, because the mean of its divisors is an integer number (63110371).

Almost surely, 2^126220741 is an apocalyptic number.

It is an amenable number.

126220741 is a deficient number, since it is larger than the sum of its proper divisors (1).

126220741 is an equidigital number, since it uses as much as digits as its factorization.

126220741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 126220741 is about 11234.8004432656. The cubic root of 126220741 is about 501.6223847086.

The spelling of 126220741 in words is "one hundred twenty-six million, two hundred twenty thousand, seven hundred forty-one".