1117650745 has 4 divisors (see below), whose sum is σ = 1341180900. Its totient is φ = 894120592.

The previous prime is 1117650733. The next prime is 1117650773. The reversal of 1117650745 is 5470567111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5470567111 = 71 ⋅77050241.

It can be written as a sum of positive squares in 2 ways, for example, as 695060496 + 422590249 = 26364^2 + 20557^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117650745 - 2¹⁷ = 1117519673 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111765070 + ... + 111765079.

It is an arithmetic number, because the mean of its divisors is an integer number (335295225).

Almost surely, 2^1117650745 is an apocalyptic number.

It is an amenable number.

1117650745 is a deficient number, since it is larger than the sum of its proper divisors (223530155).

1117650745 is an equidigital number, since it uses as much as digits as its factorization.

1117650745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223530154.

The product of its (nonzero) digits is 29400, while the sum is 37.

The square root of 1117650745 is about 33431.2839268850. The cubic root of 1117650745 is about 1037.7722113426.

The spelling of 1117650745 in words is "one billion, one hundred seventeen million, six hundred fifty thousand, seven hundred forty-five".