1318725120 has 320 divisors, whose sum is σ = 4525424640. Its totient is φ = 326860800.

The previous prime is 1318725113. The next prime is 1318725157. The reversal of 1318725120 is 215278131.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6904225 + ... + 6904415.

It is an arithmetic number, because the mean of its divisors is an integer number (14141952).

Almost surely, 2^1318725120 is an apocalyptic number.

1318725120 is a gapful number since it is divisible by the number (10) 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 1318725120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2262712320).

1318725120 is an abundant number, since it is smaller than the sum of its proper divisors (3206699520).

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

1318725120 is a wasteful number, since it uses less digits than its factorization.

1318725120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 1318725120 is about 36314.2550522519. The cubic root of 1318725120 is about 1096.6080416715.

The spelling of 1318725120 in words is "one billion, three hundred eighteen million, seven hundred twenty-five thousand, one hundred twenty".