1318153984 has 72 divisors (see below), whose sum is σ = 3014066048. Its totient is φ = 563604480.

The previous prime is 1318153981. The next prime is 1318153997. The reversal of 1318153984 is 4893518131.

It is a self number, because there is not a number n which added to its sum of digits gives 1318153984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318153981) by changing a digit.

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, 1452859 + ... + 1453765.

Almost surely, 2^1318153984 is an apocalyptic number.

1318153984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1318153984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1507033024).

1318153984 is an abundant number, since it is smaller than the sum of its proper divisors (1695912064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1318153984 is an frugal number, since it uses more digits than its factorization.

1318153984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741 (or 1727 counting only the distinct ones).

The product of its digits is 103680, while the sum is 43.

The square root of 1318153984 is about 36306.3904016910. The cubic root of 1318153984 is about 1096.4497062305.

The spelling of 1318153984 in words is "one billion, three hundred eighteen million, one hundred fifty-three thousand, nine hundred eighty-four".