127138137 has 8 divisors (see below), whose sum is σ = 193734336. Its totient is φ = 72650352.

The previous prime is 127138133. The next prime is 127138159. The reversal of 127138137 is 731831721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 127138137 - 2² = 127138133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127138098 and 127138107.

It is not an unprimeable number, because it can be changed into a prime (127138133) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3027078 + ... + 3027119.

It is an arithmetic number, because the mean of its divisors is an integer number (24216792).

Almost surely, 2^127138137 is an apocalyptic number.

It is an amenable number.

127138137 is a deficient number, since it is larger than the sum of its proper divisors (66596199).

127138137 is an equidigital number, since it uses as much as digits as its factorization.

127138137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054207.

The product of its digits is 7056, while the sum is 33.

The square root of 127138137 is about 11275.5548422240. The cubic root of 127138137 is about 502.8347473754.

Adding to 127138137 its reverse (731831721), we get a palindrome (858969858).

The spelling of 127138137 in words is "one hundred twenty-seven million, one hundred thirty-eight thousand, one hundred thirty-seven".