1312001852 has 18 divisors (see below), whose sum is σ = 2670861312. Its totient is φ = 562286424.

The previous prime is 1312001837. The next prime is 1312001869. The reversal of 1312001852 is 2581002131.

It is a happy number.

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 5 ways as a sum of consecutive naturals, for example, 3346748 + ... + 3347139.

It is an arithmetic number, because the mean of its divisors is an integer number (148381184).

Almost surely, 2^1312001852 is an apocalyptic number.

It is an amenable number.

1312001852 is an abundant number, since it is smaller than the sum of its proper divisors (1358859460).

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

1312001852 is a wasteful number, since it uses less digits than its factorization.

1312001852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6693905 (or 6693896 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1312001852 is about 36221.5661174389. The cubic root of 1312001852 is about 1094.7412500661.

Adding to 1312001852 its reverse (2581002131), we get a palindrome (3893003983).

The spelling of 1312001852 in words is "one billion, three hundred twelve million, one thousand, eight hundred fifty-two".