1119128505 has 16 divisors (see below), whose sum is σ = 1953388224. Its totient is φ = 542607680.

The previous prime is 1119128431. The next prime is 1119128539. The reversal of 1119128505 is 5058219111.

It is a happy number.

It is not a de Polignac number, because 1119128505 - 2²⁰ = 1118079929 is a prime.

It is a super-2 number, since 2×1119128505² = 2504897221407070050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3391134 + ... + 3391463.

It is an arithmetic number, because the mean of its divisors is an integer number (122086764).

Almost surely, 2^1119128505 is an apocalyptic number.

1119128505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1119128505 is a deficient number, since it is larger than the sum of its proper divisors (834259719).

1119128505 is a wasteful number, since it uses less digits than its factorization.

1119128505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782616.

The product of its (nonzero) digits is 3600, while the sum is 33.

The square root of 1119128505 is about 33453.3780805467. The cubic root of 1119128505 is about 1038.2293913892.

The spelling of 1119128505 in words is "one billion, one hundred nineteen million, one hundred twenty-eight thousand, five hundred five".