1312550000 has 60 divisors (see below), whose sum is σ = 3178749672. Its totient is φ = 525000000.

The previous prime is 1312549967. The next prime is 1312550011. The reversal of 1312550000 is 552131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36875 + ... + 63125.

Almost surely, 2^1312550000 is an apocalyptic number.

1312550000 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 1312550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1589374836).

1312550000 is an abundant number, since it is smaller than the sum of its proper divisors (1866199672).

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

1312550000 is an frugal number, since it uses more digits than its factorization.

1312550000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26284 (or 26258 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1312550000 is about 36229.1319244610. The cubic root of 1312550000 is about 1094.8936880308.

The spelling of 1312550000 in words is "one billion, three hundred twelve million, five hundred fifty thousand".