126388749 has 16 divisors (see below), whose sum is σ = 177242112. Its totient is φ = 79955568.

The previous prime is 126388747. The next prime is 126388763. The reversal of 126388749 is 947883621.

It is not a de Polignac number, because 126388749 - 2¹ = 126388747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126388698 and 126388707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126388747) 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 15 ways as a sum of consecutive naturals, for example, 1552 + ... + 15974.

It is an arithmetic number, because the mean of its divisors is an integer number (11077632).

Almost surely, 2^126388749 is an apocalyptic number.

It is an amenable number.

126388749 is a deficient number, since it is larger than the sum of its proper divisors (50853363).

126388749 is a wasteful number, since it uses less digits than its factorization.

126388749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14576.

The product of its digits is 580608, while the sum is 48.

The square root of 126388749 is about 11242.2750811390. The cubic root of 126388749 is about 501.8448500183.

The spelling of 126388749 in words is "one hundred twenty-six million, three hundred eighty-eight thousand, seven hundred forty-nine".