127331887 has 12 divisors (see below), whose sum is σ = 140948640. Its totient is φ = 114623168.

The previous prime is 127331873. The next prime is 127331909. The reversal of 127331887 is 788133721.

It is a de Polignac number, because none of the positive numbers 2^k-127331887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127331857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1914 + ... + 16072.

It is an arithmetic number, because the mean of its divisors is an integer number (11745720).

Almost surely, 2^127331887 is an apocalyptic number.

127331887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

127331887 is a deficient number, since it is larger than the sum of its proper divisors (13616753).

127331887 is a wasteful number, since it uses less digits than its factorization.

127331887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14222 (or 14199 counting only the distinct ones).

The product of its digits is 56448, while the sum is 40.

The square root of 127331887 is about 11284.1431664083. The cubic root of 127331887 is about 503.0900465513.

The spelling of 127331887 in words is "one hundred twenty-seven million, three hundred thirty-one thousand, eight hundred eighty-seven".