127890655 has 8 divisors (see below), whose sum is σ = 158419584. Its totient is φ = 99012000.

The previous prime is 127890647. The next prime is 127890661. The reversal of 127890655 is 556098721.

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

It is not a de Polignac number, because 127890655 - 2³ = 127890647 is a prime.

It is a Duffinian 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, 412396 + ... + 412705.

It is an arithmetic number, because the mean of its divisors is an integer number (19802448).

Almost surely, 2^127890655 is an apocalyptic number.

127890655 is a deficient number, since it is larger than the sum of its proper divisors (30528929).

127890655 is an equidigital number, since it uses as much as digits as its factorization.

127890655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825137.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 127890655 is about 11308.8750545755. The cubic root of 127890655 is about 503.8248727547.

The spelling of 127890655 in words is "one hundred twenty-seven million, eight hundred ninety thousand, six hundred fifty-five".