127972342 has 4 divisors (see below), whose sum is σ = 191958516. Its totient is φ = 63986170.

The previous prime is 127972319. The next prime is 127972393. The reversal of 127972342 is 243279721.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 31993084 + ... + 31993087.

It is an arithmetic number, because the mean of its divisors is an integer number (47989629).

Almost surely, 2^127972342 is an apocalyptic number.

127972342 is a deficient number, since it is larger than the sum of its proper divisors (63986174).

127972342 is an equidigital number, since it uses as much as digits as its factorization.

127972342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63986173.

The product of its digits is 42336, while the sum is 37.

The square root of 127972342 is about 11312.4861104887. The cubic root of 127972342 is about 503.9321184928.

The spelling of 127972342 in words is "one hundred twenty-seven million, nine hundred seventy-two thousand, three hundred forty-two".