127730471236 has 9 divisors (see below), whose sum is σ = 223529575549. Its totient is φ = 63864878224.

The previous prime is 127730471221. The next prime is 127730471243. The reversal of 127730471236 is 632174037721.

The square root of 127730471236 is 357394.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 118921522500 + 8808948736 = 344850^2 + 93856^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127730471192 and 127730471201.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 625440 + ... + 804136.

Almost surely, 2^127730471236 is an apocalyptic number.

127730471236 is the 357394-th square number.

It is an amenable number.

127730471236 is a deficient number, since it is larger than the sum of its proper divisors (95799104313).

127730471236 is an frugal number, since it uses more digits than its factorization.

127730471236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357398 (or 178699 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 127730471236 in words is "one hundred twenty-seven billion, seven hundred thirty million, four hundred seventy-one thousand, two hundred thirty-six".