1117125243 has 32 divisors (see below), whose sum is σ = 1784354880. Its totient is φ = 686672640.

The previous prime is 1117125223. The next prime is 1117125299. The reversal of 1117125243 is 3425217111.

It is not a de Polignac number, because 1117125243 - 2⁹ = 1117124731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1117125223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 501873 + ... + 504093.

It is an arithmetic number, because the mean of its divisors is an integer number (55761090).

Almost surely, 2^1117125243 is an apocalyptic number.

1117125243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1117125243 is a deficient number, since it is larger than the sum of its proper divisors (667229637).

1117125243 is a wasteful number, since it uses less digits than its factorization.

1117125243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676 (or 3670 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1117125243 is about 33423.4235679112. The cubic root of 1117125243 is about 1037.6095377259.

The spelling of 1117125243 in words is "one billion, one hundred seventeen million, one hundred twenty-five thousand, two hundred forty-three".