126944949 has 4 divisors (see below), whose sum is σ = 169259936. Its totient is φ = 84629964.

The previous prime is 126944927. The next prime is 126944953. The reversal of 126944949 is 949449621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 126944949 - 2⁷ = 126944821 is a prime.

It is a super-2 number, since 2×126944949² = 32230040153225202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 126944898 and 126944907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126944959) 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 in 3 ways as a sum of consecutive naturals, for example, 21157489 + ... + 21157494.

It is an arithmetic number, because the mean of its divisors is an integer number (42314984).

Almost surely, 2^126944949 is an apocalyptic number.

It is an amenable number.

126944949 is a deficient number, since it is larger than the sum of its proper divisors (42314987).

126944949 is an equidigital number, since it uses as much as digits as its factorization.

126944949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42314986.

The product of its digits is 559872, while the sum is 48.

The square root of 126944949 is about 11266.9849116789. The cubic root of 126944949 is about 502.5799303559.

The spelling of 126944949 in words is "one hundred twenty-six million, nine hundred forty-four thousand, nine hundred forty-nine".