3143656 has 8 divisors (see below), whose sum is σ = 5894370. Its totient is φ = 1571824.

The previous prime is 3143641. The next prime is 3143671. The reversal of 3143656 is 6563413.

It is an interprime number because it is at equal distance from previous prime (3143641) and next prime (3143671).

It can be written as a sum of positive squares in only one way, i.e., 3006756 + 136900 = 1734^2 + 370^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×3143656³ = 93202230157657333248, which contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196471 + ... + 196486.

Almost surely, 2^3143656 is an apocalyptic number.

It is an amenable number.

3143656 is a deficient number, since it is larger than the sum of its proper divisors (2750714).

3143656 is a wasteful number, since it uses less digits than its factorization.

3143656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392963 (or 392959 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 3143656 is about 1773.0358146411. The cubic root of 3143656 is about 146.4912457349.

The spelling of 3143656 in words is "three million, one hundred forty-three thousand, six hundred fifty-six".