126000646 has 8 divisors (see below), whose sum is σ = 189137520. Its totient is φ = 62954808.

The previous prime is 126000643. The next prime is 126000649. The reversal of 126000646 is 646000621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (126000643) and next prime (126000649).

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

It is a self number, because there is not a number n which added to its sum of digits gives 126000646.

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 3 ways as a sum of consecutive naturals, for example, 19186 + ... + 24901.

It is an arithmetic number, because the mean of its divisors is an integer number (23642190).

Almost surely, 2^126000646 is an apocalyptic number.

126000646 is a deficient number, since it is larger than the sum of its proper divisors (63136874).

126000646 is a wasteful number, since it uses less digits than its factorization.

126000646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45518.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 126000646 is about 11225.0009354120. Note that the first 3 decimals coincide. The cubic root of 126000646 is about 501.3306502650.

Subtracting from 126000646 its sum of digits (25), we obtain a palindrome (126000621).

The spelling of 126000646 in words is "one hundred twenty-six million, six hundred forty-six", and thus it is an aban number.