127439137 has 48 divisors (see below), whose sum is σ = 166786560. Its totient is φ = 95147136.

The previous prime is 127439131. The next prime is 127439141. The reversal of 127439137 is 731934721.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-127439137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 127439096 and 127439105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127439131) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2711448 + ... + 2711494.

It is an arithmetic number, because the mean of its divisors is an integer number (3474720).

Almost surely, 2^127439137 is an apocalyptic number.

It is an amenable number.

127439137 is a deficient number, since it is larger than the sum of its proper divisors (39347423).

127439137 is a wasteful number, since it uses less digits than its factorization.

127439137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 139 counting only the distinct ones).

The product of its digits is 31752, while the sum is 37.

The square root of 127439137 is about 11288.8944099943. The cubic root of 127439137 is about 503.2312556570.

The spelling of 127439137 in words is "one hundred twenty-seven million, four hundred thirty-nine thousand, one hundred thirty-seven".