1318945752 has 48 divisors (see below), whose sum is σ = 3695328000. Its totient is φ = 424487616.

The previous prime is 1318945739. The next prime is 1318945759. The reversal of 1318945752 is 2575498131.

1318945752 is a `hidden beast` number, since 13 + 189 + 457 + 5 + 2 = 666.

1318945752 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1318945698 and 1318945707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318945759) 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, 313752 + ... + 317927.

It is an arithmetic number, because the mean of its divisors is an integer number (76986000).

Almost surely, 2^1318945752 is an apocalyptic number.

1318945752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1318945752 is an abundant number, since it is smaller than the sum of its proper divisors (2376382248).

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

1318945752 is a wasteful number, since it uses less digits than its factorization.

1318945752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631720 (or 631713 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 1318945752 is about 36317.2927405114. The cubic root of 1318945752 is about 1096.6691950106.

The spelling of 1318945752 in words is "one billion, three hundred eighteen million, nine hundred forty-five thousand, seven hundred fifty-two".