126620071 has 2 divisors, whose sum is σ = 126620072. Its totient is φ = 126620070.

The previous prime is 126620059. The next prime is 126620099. The reversal of 126620071 is 170026621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126620071 - 2¹³ = 126611879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126620671) 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, 63310035 + 63310036.

It is an arithmetic number, because the mean of its divisors is an integer number (63310036).

Almost surely, 2^126620071 is an apocalyptic number.

126620071 is a deficient number, since it is larger than the sum of its proper divisors (1).

126620071 is an equidigital number, since it uses as much as digits as its factorization.

126620071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 126620071 is about 11252.5584201994. The cubic root of 126620071 is about 502.1508292671.

Adding to 126620071 its reverse (170026621), we get a palindrome (296646692).

The spelling of 126620071 in words is "one hundred twenty-six million, six hundred twenty thousand, seventy-one".