1318345469 has 4 divisors (see below), whose sum is σ = 1506680544. Its totient is φ = 1130010396.

The previous prime is 1318345459. The next prime is 1318345477. The reversal of 1318345469 is 9645438131.

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 a de Polignac number, because none of the positive numbers 2^k-1318345469 is a prime.

It is a super-2 number, since 2×1318345469² = 3476069551265659922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318345459) 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, 94167527 + ... + 94167540.

It is an arithmetic number, because the mean of its divisors is an integer number (376670136).

Almost surely, 2^1318345469 is an apocalyptic number.

It is an amenable number.

1318345469 is a deficient number, since it is larger than the sum of its proper divisors (188335075).

1318345469 is an equidigital number, since it uses as much as digits as its factorization.

1318345469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188335074.

The product of its digits is 311040, while the sum is 44.

The square root of 1318345469 is about 36309.0273761223. The cubic root of 1318345469 is about 1096.5027965140.

The spelling of 1318345469 in words is "one billion, three hundred eighteen million, three hundred forty-five thousand, four hundred sixty-nine".