126406918 has 16 divisors (see below), whose sum is σ = 207277056. Its totient is φ = 57338440.

The previous prime is 126406913. The next prime is 126406921. The reversal of 126406918 is 819604621.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126406913) 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 in 7 ways as a sum of consecutive naturals, for example, 5355 + ... + 16777.

It is an arithmetic number, because the mean of its divisors is an integer number (12954816).

Almost surely, 2^126406918 is an apocalyptic number.

126406918 is a deficient number, since it is larger than the sum of its proper divisors (80870138).

126406918 is a wasteful number, since it uses less digits than its factorization.

126406918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11939.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 126406918 is about 11243.0831180775. The cubic root of 126406918 is about 501.8688964155.

It can be divided in two parts, 126 and 406918, that added together give a square (407044 = 638²).

The spelling of 126406918 in words is "one hundred twenty-six million, four hundred six thousand, nine hundred eighteen".