1128600019 has 8 divisors (see below), whose sum is σ = 1188386640. Its totient is φ = 1068852096.

The previous prime is 1128600013. The next prime is 1128600037. The reversal of 1128600019 is 9100068211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1128600019 - 2⁵ = 1128599987 is a prime.

It is a super-2 number, since 2×1128600019² = 2547476005773600722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1128600019.

It is not an unprimeable number, because it can be changed into a prime (1128600013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65079 + ... + 80575.

It is an arithmetic number, because the mean of its divisors is an integer number (148548330).

Almost surely, 2^1128600019 is an apocalyptic number.

1128600019 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1128600019 is a deficient number, since it is larger than the sum of its proper divisors (59786621).

1128600019 is a wasteful number, since it uses less digits than its factorization.

1128600019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19349.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 1128600019 is about 33594.6427127898. The cubic root of 1128600019 is about 1041.1501141702.

The spelling of 1128600019 in words is "one billion, one hundred twenty-eight million, six hundred thousand, nineteen".