1801532312 has 16 divisors (see below), whose sum is σ = 3378405840. Its totient is φ = 900624096.

The previous prime is 1801532273. The next prime is 1801532321. The reversal of 1801532312 is 2132351081.

It is a congruent number.

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, 52478 + ... + 79730.

It is an arithmetic number, because the mean of its divisors is an integer number (211150365).

Almost surely, 2^1801532312 is an apocalyptic number.

It is an amenable number.

1801532312 is a deficient number, since it is larger than the sum of its proper divisors (1576873528).

1801532312 is a wasteful number, since it uses less digits than its factorization.

1801532312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35522 (or 35518 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1801532312 is about 42444.4614997057. The cubic root of 1801532312 is about 1216.7854801423.

Adding to 1801532312 its reverse (2132351081), we get a palindrome (3933883393).

The spelling of 1801532312 in words is "one billion, eight hundred one million, five hundred thirty-two thousand, three hundred twelve".