1801132100 has 36 divisors (see below), whose sum is σ = 3938320848. Its totient is φ = 714948000.

The previous prime is 1801132063. The next prime is 1801132111. The reversal of 1801132100 is 12311081.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55646 + ... + 81845.

Almost surely, 2^1801132100 is an apocalyptic number.

1801132100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1801132100 is an abundant number, since it is smaller than the sum of its proper divisors (2137188748).

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

1801132100 is a wasteful number, since it uses less digits than its factorization.

1801132100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137636 (or 137629 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1801132100 is about 42439.7467004694. The cubic root of 1801132100 is about 1216.6953701450.

Adding to 1801132100 its reverse (12311081), we get a palindrome (1813443181).

The spelling of 1801132100 in words is "one billion, eight hundred one million, one hundred thirty-two thousand, one hundred".