1389124132 has 24 divisors (see below), whose sum is σ = 2691551520. Its totient is φ = 621994560.

The previous prime is 1389124129. The next prime is 1389124141. The reversal of 1389124132 is 2314219831.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232657 + ... + 238552.

It is an arithmetic number, because the mean of its divisors is an integer number (112147980).

Almost surely, 2^1389124132 is an apocalyptic number.

It is an amenable number.

1389124132 is a deficient number, since it is larger than the sum of its proper divisors (1302427388).

1389124132 is a wasteful number, since it uses less digits than its factorization.

1389124132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471291 (or 471289 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 1389124132 is about 37270.9556088920. The cubic root of 1389124132 is about 1115.7845717101.

It can be divided in two parts, 1389 and 124132, that added together give a palindrome (125521).

The spelling of 1389124132 in words is "one billion, three hundred eighty-nine million, one hundred twenty-four thousand, one hundred thirty-two".