126144729 has 16 divisors (see below), whose sum is σ = 191933440. Its totient is φ = 81822960.

The previous prime is 126144727. The next prime is 126144737. The reversal of 126144729 is 927441621.

It is a happy number.

126144729 is a `hidden beast` number, since 12 + 614 + 4 + 7 + 29 = 666.

It is not a de Polignac number, because 126144729 - 2¹ = 126144727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126144693 and 126144702.

It is not an unprimeable number, because it can be changed into a prime (126144721) 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 15 ways as a sum of consecutive naturals, for example, 62137 + ... + 64134.

It is an arithmetic number, because the mean of its divisors is an integer number (11995840).

Almost surely, 2^126144729 is an apocalyptic number.

It is an amenable number.

126144729 is a deficient number, since it is larger than the sum of its proper divisors (65788711).

126144729 is a wasteful number, since it uses less digits than its factorization.

126144729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126317 (or 126311 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 126144729 is about 11231.4170521800. The cubic root of 126144729 is about 501.5216696783.

The spelling of 126144729 in words is "one hundred twenty-six million, one hundred forty-four thousand, seven hundred twenty-nine".