126240481 has 2 divisors, whose sum is σ = 126240482. Its totient is φ = 126240480.

The previous prime is 126240479. The next prime is 126240493. The reversal of 126240481 is 184042621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75603025 + 50637456 = 8695^2 + 7116^2 .

It is a cyclic number.

It is not a de Polignac number, because 126240481 - 2¹ = 126240479 is a prime.

It is a super-2 number, since 2×126240481² = 31873318086222722, which contains 22 as substring.

Together with 126240479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (126240461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63120240 + 63120241.

It is an arithmetic number, because the mean of its divisors is an integer number (63120241).

Almost surely, 2^126240481 is an apocalyptic number.

It is an amenable number.

126240481 is a deficient number, since it is larger than the sum of its proper divisors (1).

126240481 is an equidigital number, since it uses as much as digits as its factorization.

126240481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 126240481 is about 11235.6789291969. The cubic root of 126240481 is about 501.6485333686.

The spelling of 126240481 in words is "one hundred twenty-six million, two hundred forty thousand, four hundred eighty-one".