8155435223 has 4 divisors (see below), whose sum is σ = 8782776408. Its totient is φ = 7528094040.

The previous prime is 8155435201. The next prime is 8155435229. The reversal of 8155435223 is 3225345518.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8155435223 - 2¹⁶ = 8155369687 is a prime.

It is a super-2 number, since 2×8155435223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8155435229) 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, 313670573 + ... + 313670598.

It is an arithmetic number, because the mean of its divisors is an integer number (2195694102).

Almost surely, 2^8155435223 is an apocalyptic number.

8155435223 is a deficient number, since it is larger than the sum of its proper divisors (627341185).

8155435223 is a wasteful number, since it uses less digits than its factorization.

8155435223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627341184.

The product of its digits is 144000, while the sum is 38.

The square root of 8155435223 is about 90307.4483251520. The cubic root of 8155435223 is about 2012.8699399300.

The spelling of 8155435223 in words is "eight billion, one hundred fifty-five million, four hundred thirty-five thousand, two hundred twenty-three".