127942089 has 8 divisors (see below), whose sum is σ = 186097632. Its totient is φ = 77540640.

The previous prime is 127942033. The next prime is 127942091. The reversal of 127942089 is 980249721.

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

It is not a de Polignac number, because 127942089 - 2⁸ = 127941833 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 127942089.

It is not an unprimeable number, because it can be changed into a prime (127942889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1938484 + ... + 1938549.

It is an arithmetic number, because the mean of its divisors is an integer number (23262204).

Almost surely, 2^127942089 is an apocalyptic number.

It is an amenable number.

127942089 is a deficient number, since it is larger than the sum of its proper divisors (58155543).

127942089 is a wasteful number, since it uses less digits than its factorization.

127942089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3877047.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 127942089 is about 11311.1488806398. The cubic root of 127942089 is about 503.8924050681.

The spelling of 127942089 in words is "one hundred twenty-seven million, nine hundred forty-two thousand, eighty-nine".