127981142 has 16 divisors (see below), whose sum is σ = 193471200. Its totient is φ = 63493248.

The previous prime is 127981109. The next prime is 127981157. The reversal of 127981142 is 241189721.

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, 213359 + ... + 213957.

It is an arithmetic number, because the mean of its divisors is an integer number (12091950).

Almost surely, 2^127981142 is an apocalyptic number.

127981142 is a deficient number, since it is larger than the sum of its proper divisors (65490058).

127981142 is a wasteful number, since it uses less digits than its factorization.

127981142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255.

The product of its digits is 8064, while the sum is 35.

The square root of 127981142 is about 11312.8750545562. The cubic root of 127981142 is about 503.9436691683.

The spelling of 127981142 in words is "one hundred twenty-seven million, nine hundred eighty-one thousand, one hundred forty-two".