1117256417 has 4 divisors (see below), whose sum is σ = 1117354416. Its totient is φ = 1117158420.

The previous prime is 1117256383. The next prime is 1117256447. The reversal of 1117256417 is 7146527111.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1117256417 - 2⁶ = 1117256353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1117256447) 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, 29243 + ... + 55584.

It is an arithmetic number, because the mean of its divisors is an integer number (279338604).

Almost surely, 2^1117256417 is an apocalyptic number.

It is an amenable number.

1117256417 is a deficient number, since it is larger than the sum of its proper divisors (97999).

1117256417 is an equidigital number, since it uses as much as digits as its factorization.

1117256417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97998.

The product of its digits is 11760, while the sum is 35.

The square root of 1117256417 is about 33425.3858167711. The cubic root of 1117256417 is about 1037.6501485310.

The spelling of 1117256417 in words is "one billion, one hundred seventeen million, two hundred fifty-six thousand, four hundred seventeen".