1312148808 has 160 divisors (see below), whose sum is σ = 3914127360. Its totient is φ = 409259520.

The previous prime is 1312148807. The next prime is 1312148813. The reversal of 1312148808 is 8088412131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1312148801) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3425785 + ... + 3426167.

It is an arithmetic number, because the mean of its divisors is an integer number (24463296).

Almost surely, 2^1312148808 is an apocalyptic number.

1312148808 is a gapful number since it is divisible by the number (18) 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 1312148808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1957063680).

1312148808 is an abundant number, since it is smaller than the sum of its proper divisors (2601978552).

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

1312148808 is a wasteful number, since it uses less digits than its factorization.

1312148808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 1312148808 is about 36223.5946311241. The cubic root of 1312148808 is about 1094.7821221601.

The spelling of 1312148808 in words is "one billion, three hundred twelve million, one hundred forty-eight thousand, eight hundred eight".