1812105952 has 24 divisors (see below), whose sum is σ = 3569189400. Its totient is φ = 905645184.

The previous prime is 1812105941. The next prime is 1812105959. The reversal of 1812105952 is 2595012181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812105959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67174 + ... + 90202.

It is an arithmetic number, because the mean of its divisors is an integer number (148716225).

Almost surely, 2^1812105952 is an apocalyptic number.

It is an amenable number.

1812105952 is a deficient number, since it is larger than the sum of its proper divisors (1757083448).

1812105952 is a wasteful number, since it uses less digits than its factorization.

1812105952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25498 (or 25490 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 1812105952 is about 42568.8378041966. The cubic root of 1812105952 is about 1219.1613765455.

The spelling of 1812105952 in words is "one billion, eight hundred twelve million, one hundred five thousand, nine hundred fifty-two".