1117286549 has 4 divisors (see below), whose sum is σ = 1119243840. Its totient is φ = 1115329260.

The previous prime is 1117286539. The next prime is 1117286557. The reversal of 1117286549 is 9456827111.

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 1117286549 - 2²⁸ = 848851093 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 (1117286539) 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, 977789 + ... + 978930.

It is an arithmetic number, because the mean of its divisors is an integer number (279810960).

Almost surely, 2^1117286549 is an apocalyptic number.

It is an amenable number.

1117286549 is a deficient number, since it is larger than the sum of its proper divisors (1957291).

1117286549 is an equidigital number, since it uses as much as digits as its factorization.

1117286549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957290.

The product of its digits is 120960, while the sum is 44.

The square root of 1117286549 is about 33425.8365489931. The cubic root of 1117286549 is about 1037.6594767964.

The spelling of 1117286549 in words is "one billion, one hundred seventeen million, two hundred eighty-six thousand, five hundred forty-nine".