2155155434 has 8 divisors (see below), whose sum is σ = 3232957728. Its totient is φ = 1077502860.

The previous prime is 2155155419. The next prime is 2155155439. The reversal of 2155155434 is 4345515512.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2155155394 and 2155155403.

It is not an unprimeable number, because it can be changed into a prime (2155155439) 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, 11189 + ... + 66599.

It is an arithmetic number, because the mean of its divisors is an integer number (404119716).

Almost surely, 2^2155155434 is an apocalyptic number.

2155155434 is a deficient number, since it is larger than the sum of its proper divisors (1077802294).

2155155434 is a wasteful number, since it uses less digits than its factorization.

2155155434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74860.

The product of its digits is 60000, while the sum is 35.

The square root of 2155155434 is about 46423.6516659343. The cubic root of 2155155434 is about 1291.6936738430.

The spelling of 2155155434 in words is "two billion, one hundred fifty-five million, one hundred fifty-five thousand, four hundred thirty-four".