127391442 has 16 divisors (see below), whose sum is σ = 256065600. Its totient is φ = 42250032.

The previous prime is 127391437. The next prime is 127391449. The reversal of 127391442 is 244193721.

It is not an unprimeable number, because it can be changed into a prime (127391449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 52153 + ... + 54540.

It is an arithmetic number, because the mean of its divisors is an integer number (16004100).

Almost surely, 2^127391442 is an apocalyptic number.

127391442 is an abundant number, since it is smaller than the sum of its proper divisors (128674158).

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

127391442 is a wasteful number, since it uses less digits than its factorization.

127391442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106897.

The product of its digits is 12096, while the sum is 33.

The square root of 127391442 is about 11286.7817379446. The cubic root of 127391442 is about 503.1684685358.

The spelling of 127391442 in words is "one hundred twenty-seven million, three hundred ninety-one thousand, four hundred forty-two".