1312525300 has 36 divisors (see below), whose sum is σ = 2876401836. Its totient is φ = 519808000.

The previous prime is 1312525267. The next prime is 1312525303. The reversal of 1312525300 is 35252131.

It can be written as a sum of positive squares in 6 ways, for example, as 42458256 + 1270067044 = 6516^2 + 35638^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312525303) 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, 54877 + ... + 75076.

It is an arithmetic number, because the mean of its divisors is an integer number (79900051).

Almost surely, 2^1312525300 is an apocalyptic number.

1312525300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312525300 is an abundant number, since it is smaller than the sum of its proper divisors (1563876536).

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

1312525300 is a wasteful number, since it uses less digits than its factorization.

1312525300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130068 (or 130061 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1312525300 is about 36228.7910369640. The cubic root of 1312525300 is about 1094.8868199639.

Adding to 1312525300 its reverse (35252131), we get a palindrome (1347777431).

The spelling of 1312525300 in words is "one billion, three hundred twelve million, five hundred twenty-five thousand, three hundred".