126913 has 2 divisors, whose sum is σ = 126914. Its totient is φ = 126912.

The previous prime is 126859. The next prime is 126923. The reversal of 126913 is 319621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124609 + 2304 = 353^2 + 48^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126913 is a prime.

It is a super-2 number, since 2×126913² = 32213819138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126923) 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, 63456 + 63457.

It is an arithmetic number, because the mean of its divisors is an integer number (63457).

2¹²⁶⁹¹³ is an apocalyptic number.

It is an amenable number.

126913 is a deficient number, since it is larger than the sum of its proper divisors (1).

126913 is an equidigital number, since it uses as much as digits as its factorization.

126913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 22.

The square root of 126913 is about 356.2485087688. The cubic root of 126913 is about 50.2537764379.

The spelling of 126913 in words is "one hundred twenty-six thousand, nine hundred thirteen".