3161812900 has 27 divisors (see below), whose sum is σ = 6862354401. Its totient is φ = 1264500240.

The previous prime is 3161812897. The next prime is 3161812903. The reversal of 3161812900 is 92181613.

The square root of 3161812900 is 56230.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (3161812897) and next prime (3161812903).

It can be written as a sum of positive squares in only one way, i.e., 1138252644 + 2023560256 = 33738^2 + 44984^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3161812903) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 559489 + ... + 565111.

Almost surely, 2^3161812900 is an apocalyptic number.

3161812900 is the 56230-th square number.

It is an amenable number.

3161812900 is an abundant number, since it is smaller than the sum of its proper divisors (3700541501).

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

3161812900 is an frugal number, since it uses more digits than its factorization.

3161812900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11260 (or 5630 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The cubic root of 3161812900 is about 1467.7273565788.

The spelling of 3161812900 in words is "three billion, one hundred sixty-one million, eight hundred twelve thousand, nine hundred".