1389494127 has 12 divisors (see below), whose sum is σ = 2155133976. Its totient is φ = 793996560.

The previous prime is 1389494053. The next prime is 1389494129. The reversal of 1389494127 is 7214949831.

It is not a de Polignac number, because 1389494127 - 2¹⁶ = 1389428591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389494129) 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, 4726024 + ... + 4726317.

It is an arithmetic number, because the mean of its divisors is an integer number (179594498).

Almost surely, 2^1389494127 is an apocalyptic number.

1389494127 is a deficient number, since it is larger than the sum of its proper divisors (765639849).

1389494127 is an equidigital number, since it uses as much as digits as its factorization.

1389494127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9452358 (or 9452351 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 1389494127 is about 37275.9188619141. The cubic root of 1389494127 is about 1115.8836264683.

The spelling of 1389494127 in words is "one billion, three hundred eighty-nine million, four hundred ninety-four thousand, one hundred twenty-seven".