1331503234 has 16 divisors (see below), whose sum is σ = 2018685240. Its totient is φ = 658627200.

The previous prime is 1331503219. The next prime is 1331503237. The reversal of 1331503234 is 4323051331.

It can be written as a sum of positive squares in 4 ways, for example, as 1269140625 + 62362609 = 35625^2 + 7897^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1331503199 and 1331503208.

It is not an unprimeable number, because it can be changed into a prime (1331503237) by changing a digit.

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, 148462 + ... + 157174.

Almost surely, 2^1331503234 is an apocalyptic number.

1331503234 is a deficient number, since it is larger than the sum of its proper divisors (687182006).

1331503234 is a wasteful number, since it uses less digits than its factorization.

1331503234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9525.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 1331503234 is about 36489.7688948560. The cubic root of 1331503234 is about 1100.1386144879.

Adding to 1331503234 its reverse (4323051331), we get a palindrome (5654554565).

The spelling of 1331503234 in words is "one billion, three hundred thirty-one million, five hundred three thousand, two hundred thirty-four".