127438289 has 12 divisors (see below), whose sum is σ = 142458960. Its totient is φ = 113883000.

The previous prime is 127438279. The next prime is 127438327. The reversal of 127438289 is 982834721.

It is not a de Polignac number, because 127438289 - 2¹⁶ = 127372753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127438279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1787 + ... + 16064.

It is an arithmetic number, because the mean of its divisors is an integer number (11871580).

Almost surely, 2^127438289 is an apocalyptic number.

It is an amenable number.

127438289 is a deficient number, since it is larger than the sum of its proper divisors (15020671).

127438289 is a wasteful number, since it uses less digits than its factorization.

127438289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17932 (or 17921 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 127438289 is about 11288.8568508950. The cubic root of 127438289 is about 503.2301394613.

The spelling of 127438289 in words is "one hundred twenty-seven million, four hundred thirty-eight thousand, two hundred eighty-nine".