3143556 has 48 divisors (see below), whose sum is σ = 8780800. Its totient is φ = 966816.

The previous prime is 3143551. The next prime is 3143561. The reversal of 3143556 is 6553413.

It is an interprime number because it is at equal distance from previous prime (3143551) and next prime (3143561).

It is a super-3 number, since 3×3143556³ = 93193336124841670848, which contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (3143551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285 + ... + 2523.

Almost surely, 2^3143556 is an apocalyptic number.

3143556 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3143556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4390400).

3143556 is an abundant number, since it is smaller than the sum of its proper divisors (5637244).

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

3143556 is a wasteful number, since it uses less digits than its factorization.

3143556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2257 counting only the distinct ones).

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

The square root of 3143556 is about 1773.0076141968. The cubic root of 3143556 is about 146.4896924182.

Subtracting from 3143556 its sum of digits (27), we obtain a square (3143529 = 1773²).

Adding to 3143556 its reverse (6553413), we get a palindrome (9696969).

The spelling of 3143556 in words is "three million, one hundred forty-three thousand, five hundred fifty-six".