127750139 has 4 divisors (see below), whose sum is σ = 139363800. Its totient is φ = 116136480.

The previous prime is 127750127. The next prime is 127750141. The reversal of 127750139 is 931057721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127750139 - 2⁴ = 127750123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127750099 and 127750108.

It is not an unprimeable number, because it can be changed into a prime (127750199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5806814 + ... + 5806835.

It is an arithmetic number, because the mean of its divisors is an integer number (34840950).

Almost surely, 2^127750139 is an apocalyptic number.

127750139 is a deficient number, since it is larger than the sum of its proper divisors (11613661).

127750139 is a wasteful number, since it uses less digits than its factorization.

127750139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11613660.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 127750139 is about 11302.6607044536. The cubic root of 127750139 is about 503.6402843401.

The spelling of 127750139 in words is "one hundred twenty-seven million, seven hundred fifty thousand, one hundred thirty-nine".