3155223132 has 120 divisors (see below), whose sum is σ = 8368712352. Its totient is φ = 1036540800.

The previous prime is 3155223131. The next prime is 3155223151. The reversal of 3155223132 is 2313225513.

It is a happy number.

3155223132 is a `hidden beast` number, since 3 + 1 + 5 + 522 + 3 + 132 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 3155223096 and 3155223105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155223131) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10145257 + ... + 10145567.

Almost surely, 2^3155223132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3155223132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4184356176).

3155223132 is an abundant number, since it is smaller than the sum of its proper divisors (5213489220).

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

3155223132 is a wasteful number, since it uses less digits than its factorization.

3155223132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 670 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 3155223132 is about 56171.3728869074. The cubic root of 3155223132 is about 1466.7069810085.

Adding to 3155223132 its reverse (2313225513), we get a palindrome (5468448645).

The spelling of 3155223132 in words is "three billion, one hundred fifty-five million, two hundred twenty-three thousand, one hundred thirty-two".