127231992 has 64 divisors (see below), whose sum is σ = 358308000. Its totient is φ = 41824512.

The previous prime is 127231987. The next prime is 127232003. The reversal of 127231992 is 299132721.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 11734 + ... + 19802.

Almost surely, 2^127231992 is an apocalyptic number.

127231992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127231992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179154000).

127231992 is an abundant number, since it is smaller than the sum of its proper divisors (231076008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127231992 is a wasteful number, since it uses less digits than its factorization.

127231992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157 (or 8147 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 127231992 is about 11279.7159538705. The cubic root of 127231992 is about 502.9584499562.

The spelling of 127231992 in words is "one hundred twenty-seven million, two hundred thirty-one thousand, nine hundred ninety-two".