1382751520 has 24 divisors (see below), whose sum is σ = 3266750844. Its totient is φ = 553100544.

The previous prime is 1382751511. The next prime is 1382751529. The reversal of 1382751520 is 251572831.

It is an interprime number because it is at equal distance from previous prime (1382751511) and next prime (1382751529).

It can be written as a sum of positive squares in 2 ways, for example, as 1368704016 + 14047504 = 36996^2 + 3748^2 .

It is not an unprimeable number, because it can be changed into a prime (1382751529) 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 3 ways as a sum of consecutive naturals, for example, 4320939 + ... + 4321258.

Almost surely, 2^1382751520 is an apocalyptic number.

1382751520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1382751520 is an abundant number, since it is smaller than the sum of its proper divisors (1883999324).

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

1382751520 is an equidigital number, since it uses as much as digits as its factorization.

1382751520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8642212 (or 8642204 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 1382751520 is about 37185.3670144588. The cubic root of 1382751520 is about 1114.0757340155.

Subtracting from 1382751520 its reverse (251572831), we obtain a square (1131178689 = 33633²).

The spelling of 1382751520 in words is "one billion, three hundred eighty-two million, seven hundred fifty-one thousand, five hundred twenty".