125820006 has 32 divisors (see below), whose sum is σ = 271434240. Its totient is φ = 38651424.

The previous prime is 125819983. The next prime is 125820007. The reversal of 125820006 is 600028521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125820007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78691 + ... + 80273.

It is an arithmetic number, because the mean of its divisors is an integer number (8482320).

Almost surely, 2^125820006 is an apocalyptic number.

125820006 is an abundant number, since it is smaller than the sum of its proper divisors (145614234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125820006 is a wasteful number, since it uses less digits than its factorization.

125820006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 125820006 is about 11216.9517249563. The cubic root of 125820006 is about 501.0909592180.

Adding to 125820006 its reverse (600028521), we get a palindrome (725848527).

The spelling of 125820006 in words is "one hundred twenty-five million, eight hundred twenty thousand, six".