127825690 has 16 divisors (see below), whose sum is σ = 231374880. Its totient is φ = 50843920.

The previous prime is 127825681. The next prime is 127825693. The reversal of 127825690 is 96528721.

It is a super-2 number, since 2×127825690² = 32678814047952200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127825693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33916 + ... + 37495.

It is an arithmetic number, because the mean of its divisors is an integer number (14460930).

Almost surely, 2^127825690 is an apocalyptic number.

127825690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127825690 is a deficient number, since it is larger than the sum of its proper divisors (103549190).

127825690 is a wasteful number, since it uses less digits than its factorization.

127825690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71597.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 127825690 is about 11306.0023881123. The cubic root of 127825690 is about 503.7395484945.

The spelling of 127825690 in words is "one hundred twenty-seven million, eight hundred twenty-five thousand, six hundred ninety".