1812862130 has 16 divisors (see below), whose sum is σ = 3295462104. Its totient is φ = 717964800.

The previous prime is 1812862127. The next prime is 1812862157. The reversal of 1812862130 is 312682181.

It can be written as a sum of positive squares in 4 ways, for example, as 1798353649 + 14508481 = 42407^2 + 3809^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896447 + ... + 898466.

Almost surely, 2^1812862130 is an apocalyptic number.

1812862130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1812862130 is a deficient number, since it is larger than the sum of its proper divisors (1482599974).

1812862130 is a wasteful number, since it uses less digits than its factorization.

1812862130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795021.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1812862130 is about 42577.7187035661. The cubic root of 1812862130 is about 1219.3309352121.

The spelling of 1812862130 in words is "one billion, eight hundred twelve million, eight hundred sixty-two thousand, one hundred thirty".