127144772 has 12 divisors (see below), whose sum is σ = 227930556. Its totient is φ = 62021760.

The previous prime is 127144763. The next prime is 127144781. The reversal of 127144772 is 277441721.

It is an interprime number because it is at equal distance from previous prime (127144763) and next prime (127144781).

It can be written as a sum of positive squares in 2 ways, for example, as 43349056 + 83795716 = 6584^2 + 9154^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387473 + ... + 387800.

It is an arithmetic number, because the mean of its divisors is an integer number (18994213).

Almost surely, 2^127144772 is an apocalyptic number.

It is an amenable number.

127144772 is a deficient number, since it is larger than the sum of its proper divisors (100785784).

127144772 is a wasteful number, since it uses less digits than its factorization.

127144772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775318 (or 775316 counting only the distinct ones).

The product of its digits is 21952, while the sum is 35.

The square root of 127144772 is about 11275.8490589401. The cubic root of 127144772 is about 502.8434944243.

The spelling of 127144772 in words is "one hundred twenty-seven million, one hundred forty-four thousand, seven hundred seventy-two".