126532663 has 2 divisors, whose sum is σ = 126532664. Its totient is φ = 126532662.

The previous prime is 126532661. The next prime is 126532667. The reversal of 126532663 is 366235621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126532663 - 2¹ = 126532661 is a prime.

Together with 126532661, it forms a pair of twin primes.

It is equal to p_7192384 and since 126532663 and 7192384 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126532661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63266331 + 63266332.

It is an arithmetic number, because the mean of its divisors is an integer number (63266332).

Almost surely, 2^126532663 is an apocalyptic number.

126532663 is a deficient number, since it is larger than the sum of its proper divisors (1).

126532663 is an equidigital number, since it uses as much as digits as its factorization.

126532663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 34.

The square root of 126532663 is about 11248.6738329458. The cubic root of 126532663 is about 502.0352549009.

The spelling of 126532663 in words is "one hundred twenty-six million, five hundred thirty-two thousand, six hundred sixty-three".