1123499505 has 16 divisors (see below), whose sum is σ = 1808631360. Its totient is φ = 595522368.

The previous prime is 1123499501. The next prime is 1123499549. The reversal of 1123499505 is 5059943211.

It is not a de Polignac number, because 1123499505 - 2² = 1123499501 is a prime.

It is a super-2 number, since 2×1123499505² = 2524502275470490050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123499501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227310 + ... + 232199.

It is an arithmetic number, because the mean of its divisors is an integer number (113039460).

Almost surely, 2^1123499505 is an apocalyptic number.

1123499505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1123499505 is a deficient number, since it is larger than the sum of its proper divisors (685131855).

1123499505 is a wasteful number, since it uses less digits than its factorization.

1123499505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459680.

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 1123499505 is about 33518.6441402393. The cubic root of 1123499505 is about 1039.5793124084.

The spelling of 1123499505 in words is "one billion, one hundred twenty-three million, four hundred ninety-nine thousand, five hundred five".