1123056539 has 16 divisors (see below), whose sum is σ = 1246771680. Its totient is φ = 1011463200.

The previous prime is 1123056527. The next prime is 1123056547. The reversal of 1123056539 is 9356503211.

It is not a de Polignac number, because 1123056539 - 2¹⁶ = 1122991003 is a prime.

It is a super-2 number, since 2×1123056539² = 2522511979581317042, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1123056499 and 1123056508.

It is not an unprimeable number, because it can be changed into a prime (1123056509) 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 15 ways as a sum of consecutive naturals, for example, 141209 + ... + 148949.

It is an arithmetic number, because the mean of its divisors is an integer number (77923230).

Almost surely, 2^1123056539 is an apocalyptic number.

1123056539 is a deficient number, since it is larger than the sum of its proper divisors (123715141).

1123056539 is an equidigital number, since it uses as much as digits as its factorization.

1123056539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7883 (or 7861 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 1123056539 is about 33512.0357334496. The cubic root of 1123056539 is about 1039.4426682825.

The spelling of 1123056539 in words is "one billion, one hundred twenty-three million, fifty-six thousand, five hundred thirty-nine".