126726149 has 4 divisors (see below), whose sum is σ = 138246720. Its totient is φ = 115205580.

The previous prime is 126726091. The next prime is 126726163. The reversal of 126726149 is 941627621.

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, and also an emirpimes, since its reverse is a distinct semiprime: 941627621 = 11 ⋅85602511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126726149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126720149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5760269 + ... + 5760290.

It is an arithmetic number, because the mean of its divisors is an integer number (34561680).

Almost surely, 2^126726149 is an apocalyptic number.

It is an amenable number.

126726149 is a deficient number, since it is larger than the sum of its proper divisors (11520571).

126726149 is a wasteful number, since it uses less digits than its factorization.

126726149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11520570.

The product of its digits is 36288, while the sum is 38.

The square root of 126726149 is about 11257.2709392641. The cubic root of 126726149 is about 502.2910184357.

The spelling of 126726149 in words is "one hundred twenty-six million, seven hundred twenty-six thousand, one hundred forty-nine".