127432985 has 8 divisors (see below), whose sum is σ = 152994120. Its totient is φ = 101896704.

The previous prime is 127432967. The next prime is 127432993. The reversal of 127432985 is 589234721.

It can be written as a sum of positive squares in 4 ways, for example, as 42406144 + 85026841 = 6512^2 + 9221^2 .

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 127432985 - 2¹⁰ = 127431961 is a prime.

It is an alternating number because its digits alternate between odd and even.

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, 8051 + ... + 17879.

It is an arithmetic number, because the mean of its divisors is an integer number (19124265).

Almost surely, 2^127432985 is an apocalyptic number.

It is an amenable number.

127432985 is a deficient number, since it is larger than the sum of its proper divisors (25561135).

127432985 is an equidigital number, since it uses as much as digits as its factorization.

127432985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12427.

The product of its digits is 120960, while the sum is 41.

The square root of 127432985 is about 11288.6219265241. The cubic root of 127432985 is about 503.2231578607.

The spelling of 127432985 in words is "one hundred twenty-seven million, four hundred thirty-two thousand, nine hundred eighty-five".