126564369 has 8 divisors (see below), whose sum is σ = 170301120. Its totient is φ = 83601936.

The previous prime is 126564353. The next prime is 126564391. The reversal of 126564369 is 963465621.

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

It is not a de Polignac number, because 126564369 - 2⁴ = 126564353 is a prime.

It is a super-2 number, since 2×126564369² = 32037079000736322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 126564369.

It is not an unprimeable number, because it can be changed into a prime (126564329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193197 + ... + 193850.

It is an arithmetic number, because the mean of its divisors is an integer number (21287640).

Almost surely, 2^126564369 is an apocalyptic number.

It is an amenable number.

126564369 is a deficient number, since it is larger than the sum of its proper divisors (43736751).

126564369 is a wasteful number, since it uses less digits than its factorization.

126564369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387159.

The product of its digits is 233280, while the sum is 42.

The square root of 126564369 is about 11250.0830663600. The cubic root of 126564369 is about 502.0771839967.

The spelling of 126564369 in words is "one hundred twenty-six million, five hundred sixty-four thousand, three hundred sixty-nine".