126664403 has 8 divisors (see below), whose sum is σ = 128402496. Its totient is φ = 124936000.

The previous prime is 126664397. The next prime is 126664409. The reversal of 126664403 is 304466621.

It is an interprime number because it is at equal distance from previous prime (126664397) and next prime (126664409).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126664403 - 2¹² = 126660307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126664403.

It is not an unprimeable number, because it can be changed into a prime (126664409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26150 + ... + 30612.

It is an arithmetic number, because the mean of its divisors is an integer number (16050312).

Almost surely, 2^126664403 is an apocalyptic number.

126664403 is a deficient number, since it is larger than the sum of its proper divisors (1738093).

126664403 is a wasteful number, since it uses less digits than its factorization.

126664403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4845.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 126664403 is about 11254.5281109427. The cubic root of 126664403 is about 502.2094264886.

The spelling of 126664403 in words is "one hundred twenty-six million, six hundred sixty-four thousand, four hundred three".