1314243291 has 4 divisors (see below), whose sum is σ = 1752324392. Its totient is φ = 876162192.

The previous prime is 1314243277. The next prime is 1314243313. The reversal of 1314243291 is 1923424131.

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

It is not a de Polignac number, because 1314243291 - 2¹⁸ = 1313981147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1314243991) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 219040546 + ... + 219040551.

It is an arithmetic number, because the mean of its divisors is an integer number (438081098).

Almost surely, 2^1314243291 is an apocalyptic number.

1314243291 is a deficient number, since it is larger than the sum of its proper divisors (438081101).

1314243291 is an equidigital number, since it uses as much as digits as its factorization.

1314243291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438081100.

The product of its digits is 5184, while the sum is 30.

The square root of 1314243291 is about 36252.4935832006. The cubic root of 1314243291 is about 1095.3643182144.

The spelling of 1314243291 in words is "one billion, three hundred fourteen million, two hundred forty-three thousand, two hundred ninety-one".