127820825 has 12 divisors (see below), whose sum is σ = 172907088. Its totient is φ = 92960400.

The previous prime is 127820783. The next prime is 127820827. The reversal of 127820825 is 528028721.

It is not a de Polignac number, because 127820825 - 2¹⁰ = 127819801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (127820827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232127 + ... + 232676.

It is an arithmetic number, because the mean of its divisors is an integer number (14408924).

Almost surely, 2^127820825 is an apocalyptic number.

It is an amenable number.

127820825 is a deficient number, since it is larger than the sum of its proper divisors (45086263).

127820825 is a wasteful number, since it uses less digits than its factorization.

127820825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464824 (or 464819 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 127820825 is about 11305.7872348634. The cubic root of 127820825 is about 503.7331576978.

The spelling of 127820825 in words is "one hundred twenty-seven million, eight hundred twenty thousand, eight hundred twenty-five".