127139037 has 8 divisors (see below), whose sum is σ = 170813280. Its totient is φ = 84112080.

The previous prime is 127139027. The next prime is 127139059. The reversal of 127139037 is 730931721.

It is a happy number.

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

It is not a de Polignac number, because 127139037 - 2²² = 122944733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127138989 and 127139007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127139027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161362 + ... + 162147.

It is an arithmetic number, because the mean of its divisors is an integer number (21351660).

Almost surely, 2^127139037 is an apocalyptic number.

It is an amenable number.

127139037 is a deficient number, since it is larger than the sum of its proper divisors (43674243).

127139037 is a wasteful number, since it uses less digits than its factorization.

127139037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323643.

The product of its (nonzero) digits is 7938, while the sum is 33.

The square root of 127139037 is about 11275.5947514976. The cubic root of 127139037 is about 502.8359338806.

The spelling of 127139037 in words is "one hundred twenty-seven million, one hundred thirty-nine thousand, thirty-seven".