126000645 has 8 divisors (see below), whose sum is σ = 201601056. Its totient is φ = 67200336.

The previous prime is 126000643. The next prime is 126000649. The reversal of 126000645 is 546000621.

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

It is not a de Polignac number, because 126000645 - 2¹ = 126000643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126000643) 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, 4200007 + ... + 4200036.

It is an arithmetic number, because the mean of its divisors is an integer number (25200132).

Almost surely, 2^126000645 is an apocalyptic number.

126000645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126000645 is a deficient number, since it is larger than the sum of its proper divisors (75600411).

126000645 is an equidigital number, since it uses as much as digits as its factorization.

126000645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8400051.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 126000645 is about 11225.0008908686. Note that the first 3 decimals coincide. The cubic root of 126000645 is about 501.3306489387.

Subtracting from 126000645 its sum of digits (24), we obtain a palindrome (126000621).

The spelling of 126000645 in words is "one hundred twenty-six million, six hundred forty-five", and thus it is an aban number.