127238089 has 4 divisors (see below), whose sum is σ = 138805200. Its totient is φ = 115670980.

The previous prime is 127238077. The next prime is 127238123. The reversal of 127238089 is 980832721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 127238089 - 2⁷ = 127237961 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127238029) 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, 5783539 + ... + 5783560.

It is an arithmetic number, because the mean of its divisors is an integer number (34701300).

Almost surely, 2^127238089 is an apocalyptic number.

It is an amenable number.

127238089 is a deficient number, since it is larger than the sum of its proper divisors (11567111).

127238089 is a wasteful number, since it uses less digits than its factorization.

127238089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11567110.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 127238089 is about 11279.9862145306. The cubic root of 127238089 is about 502.9664838075.

The spelling of 127238089 in words is "one hundred twenty-seven million, two hundred thirty-eight thousand, eighty-nine".