1099477219 has 4 divisors (see below), whose sum is σ = 1099725040. Its totient is φ = 1099229400.

The previous prime is 1099477201. The next prime is 1099477229. The reversal of 1099477219 is 9127749901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9127749901 = 467 ⋅19545503.

It is a cyclic number.

It is not a de Polignac number, because 1099477219 - 2¹⁷ = 1099346147 is a prime.

It is a super-2 number, since 2×1099477219² = 2417700310199947922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1099477229) 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, 117132 + ... + 126169.

It is an arithmetic number, because the mean of its divisors is an integer number (274931260).

Almost surely, 2^1099477219 is an apocalyptic number.

1099477219 is a deficient number, since it is larger than the sum of its proper divisors (247821).

1099477219 is an equidigital number, since it uses as much as digits as its factorization.

1099477219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247820.

The product of its (nonzero) digits is 285768, while the sum is 49.

The square root of 1099477219 is about 33158.3657468217. The cubic root of 1099477219 is about 1032.1165572912.

The spelling of 1099477219 in words is "one billion, ninety-nine million, four hundred seventy-seven thousand, two hundred nineteen".