3155443172 has 12 divisors (see below), whose sum is σ = 6310886400. Its totient is φ = 1352332776.

The previous prime is 3155443171. The next prime is 3155443211. The reversal of 3155443172 is 2713445513.

3155443172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

3155443172 is an admirable number.

It is a super-2 number, since 2×3155443172² = 19913643223442843168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3155443171) 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, 56347172 + ... + 56347227.

It is an arithmetic number, because the mean of its divisors is an integer number (525907200).

Almost surely, 2^3155443172 is an apocalyptic number.

It is an amenable number.

3155443172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3155443172 is a wasteful number, since it uses less digits than its factorization.

3155443172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112694410 (or 112694408 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 3155443172 is about 56173.3315017011. The cubic root of 3155443172 is about 1466.7410754490.

Adding to 3155443172 its reverse (2713445513), we get a palindrome (5868888685).

The spelling of 3155443172 in words is "three billion, one hundred fifty-five million, four hundred forty-three thousand, one hundred seventy-two".