127672538 has 24 divisors (see below), whose sum is σ = 223787700. Its totient is φ = 54468288.

The previous prime is 127672537. The next prime is 127672543. The reversal of 127672538 is 835276721.

It can be written as a sum of positive squares in 2 ways, for example, as 93180409 + 34492129 = 9653^2 + 5873^2 .

It is a super-2 number, since 2×127672538² = 32600553918722888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127672495 and 127672504.

It is not an unprimeable number, because it can be changed into a prime (127672537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19598 + ... + 25286.

Almost surely, 2^127672538 is an apocalyptic number.

127672538 is a deficient number, since it is larger than the sum of its proper divisors (96115162).

127672538 is a wasteful number, since it uses less digits than its factorization.

127672538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5934 (or 5927 counting only the distinct ones).

The product of its digits is 141120, while the sum is 41.

The square root of 127672538 is about 11299.2273187152. The cubic root of 127672538 is about 503.5382860011.

The spelling of 127672538 in words is "one hundred twenty-seven million, six hundred seventy-two thousand, five hundred thirty-eight".