126388697 has 4 divisors (see below), whose sum is σ = 126917760. Its totient is φ = 125859636.

The previous prime is 126388667. The next prime is 126388747. The reversal of 126388697 is 796883621.

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 a cyclic number.

It is not a de Polignac number, because 126388697 - 2⁸ = 126388441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126388637) 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, 264173 + ... + 264650.

It is an arithmetic number, because the mean of its divisors is an integer number (31729440).

Almost surely, 2^126388697 is an apocalyptic number.

It is an amenable number.

126388697 is a deficient number, since it is larger than the sum of its proper divisors (529063).

126388697 is an equidigital number, since it uses as much as digits as its factorization.

126388697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529062.

The product of its digits is 870912, while the sum is 50.

The square root of 126388697 is about 11242.2727684397. The cubic root of 126388697 is about 501.8447811938.

The spelling of 126388697 in words is "one hundred twenty-six million, three hundred eighty-eight thousand, six hundred ninety-seven".