1099372019 has 4 divisors (see below), whose sum is σ = 1099441080. Its totient is φ = 1099302960.

The previous prime is 1099372007. The next prime is 1099372033. The reversal of 1099372019 is 9102739901.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1099372019 is a prime.

It is a super-2 number, since 2×1099372019² = 2417237672320272722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1099372069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2804 + ... + 46974.

It is an arithmetic number, because the mean of its divisors is an integer number (274860270).

Almost surely, 2^1099372019 is an apocalyptic number.

1099372019 is a deficient number, since it is larger than the sum of its proper divisors (69061).

1099372019 is an equidigital number, since it uses as much as digits as its factorization.

1099372019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69060.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 1099372019 is about 33156.7793822018. The cubic root of 1099372019 is about 1032.0836379718.

The spelling of 1099372019 in words is "one billion, ninety-nine million, three hundred seventy-two thousand, nineteen".