126220541 has 2 divisors, whose sum is σ = 126220542. Its totient is φ = 126220540.

The previous prime is 126220519. The next prime is 126220543. The reversal of 126220541 is 145022621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83265625 + 42954916 = 9125^2 + 6554^2 .

It is a cyclic number.

It is not a de Polignac number, because 126220541 - 2¹⁰ = 126219517 is a prime.

It is a Sophie Germain prime.

Together with 126220543, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126220543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63110270 + 63110271.

It is an arithmetic number, because the mean of its divisors is an integer number (63110271).

Almost surely, 2^126220541 is an apocalyptic number.

It is an amenable number.

126220541 is a deficient number, since it is larger than the sum of its proper divisors (1).

126220541 is an equidigital number, since it uses as much as digits as its factorization.

126220541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 126220541 is about 11234.7915423474. The cubic root of 126220541 is about 501.6221197640.

The spelling of 126220541 in words is "one hundred twenty-six million, two hundred twenty thousand, five hundred forty-one".