125684805 has 8 divisors (see below), whose sum is σ = 201095712. Its totient is φ = 67031888.

The previous prime is 125684789. The next prime is 125684849. The reversal of 125684805 is 508486521.

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

It is a cyclic number.

It is not a de Polignac number, because 125684805 - 2⁴ = 125684789 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4189479 + ... + 4189508.

It is an arithmetic number, because the mean of its divisors is an integer number (25136964).

Almost surely, 2^125684805 is an apocalyptic number.

125684805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125684805 is a deficient number, since it is larger than the sum of its proper divisors (75410907).

125684805 is an equidigital number, since it uses as much as digits as its factorization.

125684805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8378995.

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 125684805 is about 11210.9234677613. The cubic root of 125684805 is about 500.9114109839.

The spelling of 125684805 in words is "one hundred twenty-five million, six hundred eighty-four thousand, eight hundred five".