1117273549 has 24 divisors (see below), whose sum is σ = 1393964640. Its totient is φ = 890102304.

The previous prime is 1117273523. The next prime is 1117273561. The reversal of 1117273549 is 9453727111.

It is a happy number.

It is not a de Polignac number, because 1117273549 - 2²³ = 1108884941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117273579) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38022 + ... + 60664.

It is an arithmetic number, because the mean of its divisors is an integer number (58081860).

Almost surely, 2^1117273549 is an apocalyptic number.

1117273549 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1117273549 is a deficient number, since it is larger than the sum of its proper divisors (276691091).

1117273549 is a wasteful number, since it uses less digits than its factorization.

1117273549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22729 (or 22722 counting only the distinct ones).

The product of its digits is 52920, while the sum is 40.

The square root of 1117273549 is about 33425.6420880736. The cubic root of 1117273549 is about 1037.6554522766.

The spelling of 1117273549 in words is "one billion, one hundred seventeen million, two hundred seventy-three thousand, five hundred forty-nine".