126055261 has 2 divisors, whose sum is σ = 126055262. Its totient is φ = 126055260.

The previous prime is 126055169. The next prime is 126055271. The reversal of 126055261 is 162550621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108035236 + 18020025 = 10394^2 + 4245^2 .

It is a cyclic number.

It is not a de Polignac number, because 126055261 - 2⁷ = 126055133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126055271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63027630 + 63027631.

It is an arithmetic number, because the mean of its divisors is an integer number (63027631).

Almost surely, 2^126055261 is an apocalyptic number.

It is an amenable number.

126055261 is a deficient number, since it is larger than the sum of its proper divisors (1).

126055261 is an equidigital number, since it uses as much as digits as its factorization.

126055261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 126055261 is about 11227.4334110695. The cubic root of 126055261 is about 501.4030737519.

The spelling of 126055261 in words is "one hundred twenty-six million, fifty-five thousand, two hundred sixty-one".