1800505132 has 12 divisors (see below), whose sum is σ = 3316720120. Its totient is φ = 852870816.

The previous prime is 1800505103. The next prime is 1800505153. The reversal of 1800505132 is 2315050081.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1800505097 and 1800505106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11845353 + ... + 11845504.

Almost surely, 2^1800505132 is an apocalyptic number.

It is an amenable number.

1800505132 is a deficient number, since it is larger than the sum of its proper divisors (1516214988).

1800505132 is a wasteful number, since it uses less digits than its factorization.

1800505132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23690880 (or 23690878 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1800505132 is about 42432.3594913128. The cubic root of 1800505132 is about 1216.5541779113.

The spelling of 1800505132 in words is "one billion, eight hundred million, five hundred five thousand, one hundred thirty-two".