127890475 has 6 divisors (see below), whose sum is σ = 158584220. Its totient is φ = 102312360.

The previous prime is 127890461. The next prime is 127890481. The reversal of 127890475 is 574098721.

It is not a de Polignac number, because 127890475 - 2⁵ = 127890443 is a prime.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2557785 + ... + 2557834.

Almost surely, 2^127890475 is an apocalyptic number.

127890475 is a deficient number, since it is larger than the sum of its proper divisors (30693745).

127890475 is an equidigital number, since it uses as much as digits as its factorization.

127890475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115629 (or 5115624 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 127890475 is about 11308.8670962214. The cubic root of 127890475 is about 503.8246363848.

The spelling of 127890475 in words is "one hundred twenty-seven million, eight hundred ninety thousand, four hundred seventy-five".