1318683229 has 4 divisors (see below), whose sum is σ = 1322923680. Its totient is φ = 1314442780.

The previous prime is 1318683221. The next prime is 1318683253. The reversal of 1318683229 is 9223868131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1318683229 - 2³ = 1318683221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318683221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2119759 + ... + 2120380.

It is an arithmetic number, because the mean of its divisors is an integer number (330730920).

Almost surely, 2^1318683229 is an apocalyptic number.

It is an amenable number.

1318683229 is a deficient number, since it is larger than the sum of its proper divisors (4240451).

1318683229 is an equidigital number, since it uses as much as digits as its factorization.

1318683229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4240450.

The product of its digits is 124416, while the sum is 43.

The square root of 1318683229 is about 36313.6782631559. The cubic root of 1318683229 is about 1096.5964298268.

The spelling of 1318683229 in words is "one billion, three hundred eighteen million, six hundred eighty-three thousand, two hundred twenty-nine".