1389124513 has 8 divisors (see below), whose sum is σ = 1613597120. Its totient is φ = 1171158480.

The previous prime is 1389124507. The next prime is 1389124543. The reversal of 1389124513 is 3154219831.

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

It is a cyclic number.

It is not a de Polignac number, because 1389124513 - 2²¹ = 1387027361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1389124543) 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, 1626183 + ... + 1627036.

It is an arithmetic number, because the mean of its divisors is an integer number (201699640).

Almost surely, 2^1389124513 is an apocalyptic number.

It is an amenable number.

1389124513 is a deficient number, since it is larger than the sum of its proper divisors (224472607).

1389124513 is an equidigital number, since it uses as much as digits as its factorization.

1389124513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253287.

The product of its digits is 25920, while the sum is 37.

The square root of 1389124513 is about 37270.9607201102. The cubic root of 1389124513 is about 1115.7846737202.

The spelling of 1389124513 in words is "one billion, three hundred eighty-nine million, one hundred twenty-four thousand, five hundred thirteen".