127661633 has 8 divisors (see below), whose sum is σ = 139509216. Its totient is φ = 115854400.

The previous prime is 127661629. The next prime is 127661641. The reversal of 127661633 is 336166721.

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 127661633 - 2² = 127661629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127661593 and 127661602.

It is not an unprimeable number, because it can be changed into a prime (127661623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3263 + ... + 16308.

It is an arithmetic number, because the mean of its divisors is an integer number (17438652).

Almost surely, 2^127661633 is an apocalyptic number.

It is an amenable number.

127661633 is a deficient number, since it is larger than the sum of its proper divisors (11847583).

127661633 is a wasteful number, since it uses less digits than its factorization.

127661633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20175.

The product of its digits is 27216, while the sum is 35.

The square root of 127661633 is about 11298.7447532901. The cubic root of 127661633 is about 503.5239492156.

The spelling of 127661633 in words is "one hundred twenty-seven million, six hundred sixty-one thousand, six hundred thirty-three".