125806838 has 8 divisors (see below), whose sum is σ = 191527032. Its totient is φ = 61964496.

The previous prime is 125806831. The next prime is 125806853. The reversal of 125806838 is 838608521.

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

It is a junction number, because it is equal to n+sod(n) for n = 125806795 and 125806804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125806831) 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 3 ways as a sum of consecutive naturals, for example, 469295 + ... + 469562.

It is an arithmetic number, because the mean of its divisors is an integer number (23940879).

Almost surely, 2^125806838 is an apocalyptic number.

125806838 is a deficient number, since it is larger than the sum of its proper divisors (65720194).

125806838 is an equidigital number, since it uses as much as digits as its factorization.

125806838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938926.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 125806838 is about 11216.3647408597. The cubic root of 125806838 is about 501.0734776421.

The spelling of 125806838 in words is "one hundred twenty-five million, eight hundred six thousand, eight hundred thirty-eight".