126590077 has 2 divisors, whose sum is σ = 126590078. Its totient is φ = 126590076.

The previous prime is 126590063. The next prime is 126590099. The reversal of 126590077 is 770095621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94848121 + 31741956 = 9739^2 + 5634^2 .

It is a cyclic number.

It is not a de Polignac number, because 126590077 - 2⁷ = 126589949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126590047) 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, 63295038 + 63295039.

It is an arithmetic number, because the mean of its divisors is an integer number (63295039).

Almost surely, 2^126590077 is an apocalyptic number.

It is an amenable number.

126590077 is a deficient number, since it is larger than the sum of its proper divisors (1).

126590077 is an equidigital number, since it uses as much as digits as its factorization.

126590077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 126590077 is about 11251.2255776871. The cubic root of 126590077 is about 502.1111759923. Note that the first 4 decimals are identical.

The spelling of 126590077 in words is "one hundred twenty-six million, five hundred ninety thousand, seventy-seven".