126534673 has 2 divisors, whose sum is σ = 126534674. Its totient is φ = 126534672.

The previous prime is 126534649. The next prime is 126534713. The reversal of 126534673 is 376435621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115089984 + 11444689 = 10728^2 + 3383^2 .

It is an emirp because it is prime and its reverse (376435621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126534673 is a prime.

It is a super-2 number, since 2×126534673² = 32022046942433858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126534643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63267336 + 63267337.

It is an arithmetic number, because the mean of its divisors is an integer number (63267337).

Almost surely, 2^126534673 is an apocalyptic number.

It is an amenable number.

126534673 is a deficient number, since it is larger than the sum of its proper divisors (1).

126534673 is an equidigital number, since it uses as much as digits as its factorization.

126534673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 37.

The square root of 126534673 is about 11248.7631764563. The cubic root of 126534673 is about 502.0379132014.

The spelling of 126534673 in words is "one hundred twenty-six million, five hundred thirty-four thousand, six hundred seventy-three".