126949 has 2 divisors, whose sum is σ = 126950. Its totient is φ = 126948.

The previous prime is 126943. The next prime is 126961. The reversal of 126949 is 949621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84100 + 42849 = 290^2 + 207^2 .

It is an emirp because it is prime and its reverse (949621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126949 - 2¹³ = 118757 is a prime.

It is a super-2 number, since 2×126949² = 32232097202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126943) 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, 63474 + 63475.

It is an arithmetic number, because the mean of its divisors is an integer number (63475).

2¹²⁶⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

126949 is a deficient number, since it is larger than the sum of its proper divisors (1).

126949 is an equidigital number, since it uses as much as digits as its factorization.

126949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The square root of 126949 is about 356.2990317135. The cubic root of 126949 is about 50.2585276321.

The spelling of 126949 in words is "one hundred twenty-six thousand, nine hundred forty-nine".