1153213219 has 4 divisors (see below), whose sum is σ = 1153302480. Its totient is φ = 1153123960.

The previous prime is 1153213211. The next prime is 1153213223. The reversal of 1153213219 is 9123123511.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9123123511 = 90679 ⋅100609.

It is a cyclic number.

It is not a de Polignac number, because 1153213219 - 2³ = 1153213211 is a prime.

It is a super-2 number, since 2×1153213219² = 2659801456952683922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153213211) 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, 21124 + ... + 52465.

It is an arithmetic number, because the mean of its divisors is an integer number (288325620).

Almost surely, 2^1153213219 is an apocalyptic number.

1153213219 is a deficient number, since it is larger than the sum of its proper divisors (89261).

1153213219 is an equidigital number, since it uses as much as digits as its factorization.

1153213219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89260.

The product of its digits is 1620, while the sum is 28.

The square root of 1153213219 is about 33958.9931976789. The cubic root of 1153213219 is about 1048.6644301072.

The spelling of 1153213219 in words is "one billion, one hundred fifty-three million, two hundred thirteen thousand, two hundred nineteen".