1331315450 has 24 divisors (see below), whose sum is σ = 2482339260. Its totient is φ = 531216000.

The previous prime is 1331315449. The next prime is 1331315477. The reversal of 1331315450 is 545131331.

It can be written as a sum of positive squares in 6 ways, for example, as 1034201281 + 297114169 = 32159^2 + 17237^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12101 + ... + 53000.

Almost surely, 2^1331315450 is an apocalyptic number.

1331315450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331315450 is a deficient number, since it is larger than the sum of its proper divisors (1151023810).

1331315450 is a wasteful number, since it uses less digits than its factorization.

1331315450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65522 (or 65517 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1331315450 is about 36487.1956993135. The cubic root of 1331315450 is about 1100.0868939621.

Adding to 1331315450 its reverse (545131331), we get a palindrome (1876446781).

The spelling of 1331315450 in words is "one billion, three hundred thirty-one million, three hundred fifteen thousand, four hundred fifty".