1331807314 has 4 divisors (see below), whose sum is σ = 1997710974. Its totient is φ = 665903656.

The previous prime is 1331807273. The next prime is 1331807329. The reversal of 1331807314 is 4137081331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 810370089 + 521437225 = 28467^2 + 22835^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332951827 + ... + 332951830.

Almost surely, 2^1331807314 is an apocalyptic number.

1331807314 is a deficient number, since it is larger than the sum of its proper divisors (665903660).

1331807314 is an equidigital number, since it uses as much as digits as its factorization.

1331807314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665903659.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1331807314 is about 36493.9353043763. The cubic root of 1331807314 is about 1100.2223556007. Note that the first 3 decimals are identical.

Adding to 1331807314 its reverse (4137081331), we get a palindrome (5468888645).

The spelling of 1331807314 in words is "one billion, three hundred thirty-one million, eight hundred seven thousand, three hundred fourteen".