1117681469 has 4 divisors (see below), whose sum is σ = 1120204896. Its totient is φ = 1115158044.

The previous prime is 1117681451. The next prime is 1117681511. The reversal of 1117681469 is 9641867111.

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-1117681469 is a prime.

It is a super-2 number, since 2×1117681469² = 2498423732291995922, 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 (1117621469) 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, 1261049 + ... + 1261934.

It is an arithmetic number, because the mean of its divisors is an integer number (280051224).

Almost surely, 2^1117681469 is an apocalyptic number.

It is an amenable number.

1117681469 is a deficient number, since it is larger than the sum of its proper divisors (2523427).

1117681469 is an equidigital number, since it uses as much as digits as its factorization.

1117681469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523426.

The product of its digits is 72576, while the sum is 44.

The square root of 1117681469 is about 33431.7434334496. The cubic root of 1117681469 is about 1037.7817206404.

The spelling of 1117681469 in words is "one billion, one hundred seventeen million, six hundred eighty-one thousand, four hundred sixty-nine".