126920447 has 2 divisors, whose sum is σ = 126920448. Its totient is φ = 126920446.

The previous prime is 126920441. The next prime is 126920473. The reversal of 126920447 is 744029621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126920447 - 2¹⁰ = 126919423 is a prime.

It is a super-2 number, since 2×126920447² = 32217599733359618, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126920441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63460223 + 63460224.

It is an arithmetic number, because the mean of its divisors is an integer number (63460224).

Almost surely, 2^126920447 is an apocalyptic number.

126920447 is a deficient number, since it is larger than the sum of its proper divisors (1).

126920447 is an equidigital number, since it uses as much as digits as its factorization.

126920447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 126920447 is about 11265.8975230560. The cubic root of 126920447 is about 502.5475934889.

The spelling of 126920447 in words is "one hundred twenty-six million, nine hundred twenty thousand, four hundred forty-seven".