1995313100 has 72 divisors (see below), whose sum is σ = 4886406000. Its totient is φ = 700537600.

The previous prime is 1995313079. The next prime is 1995313127. The reversal of 1995313100 is 13135991.

It is a happy number.

It is a super-2 number, since 2×1995313100² = 7962548734063220000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 626 + ... + 63174.

It is an arithmetic number, because the mean of its divisors is an integer number (67866750).

Almost surely, 2^1995313100 is an apocalyptic number.

1995313100 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 1995313100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2443203000).

1995313100 is an abundant number, since it is smaller than the sum of its proper divisors (2891092900).

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

1995313100 is a wasteful number, since it uses less digits than its factorization.

1995313100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62603 (or 62596 counting only the distinct ones).

The product of its (nonzero) digits is 3645, while the sum is 32.

The square root of 1995313100 is about 44668.9276790925. The cubic root of 1995313100 is about 1258.9360927663.

The spelling of 1995313100 in words is "one billion, nine hundred ninety-five million, three hundred thirteen thousand, one hundred".