127974142 has 4 divisors (see below), whose sum is σ = 191961216. Its totient is φ = 63987070.

The previous prime is 127974109. The next prime is 127974151. The reversal of 127974142 is 241479721.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 31993534 + ... + 31993537.

It is an arithmetic number, because the mean of its divisors is an integer number (47990304).

Almost surely, 2^127974142 is an apocalyptic number.

127974142 is a deficient number, since it is larger than the sum of its proper divisors (63987074).

127974142 is an equidigital number, since it uses as much as digits as its factorization.

127974142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63987073.

The product of its digits is 28224, while the sum is 37.

The square root of 127974142 is about 11312.5656683177. The cubic root of 127974142 is about 503.9344811740.

The spelling of 127974142 in words is "one hundred twenty-seven million, nine hundred seventy-four thousand, one hundred forty-two".