1331157404 has 12 divisors (see below), whose sum is σ = 2452132200. Its totient is φ = 630548208.

The previous prime is 1331157397. The next prime is 1331157413. The reversal of 1331157404 is 4047511331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8757539 + ... + 8757690.

It is an arithmetic number, because the mean of its divisors is an integer number (204344350).

Almost surely, 2^1331157404 is an apocalyptic number.

It is an amenable number.

1331157404 is a deficient number, since it is larger than the sum of its proper divisors (1120974796).

1331157404 is a wasteful number, since it uses less digits than its factorization.

1331157404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17515252 (or 17515250 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1331157404 is about 36485.0298615747. The cubic root of 1331157404 is about 1100.0433602743.

Adding to 1331157404 its reverse (4047511331), we get a palindrome (5378668735).

The spelling of 1331157404 in words is "one billion, three hundred thirty-one million, one hundred fifty-seven thousand, four hundred four".