3143261 has 8 divisors (see below), whose sum is σ = 3522144. Its totient is φ = 2779920.

The previous prime is 3143243. The next prime is 3143263. The reversal of 3143261 is 1623413.

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

It is not a de Polignac number, because 3143261 - 2⁶ = 3143197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3455 + ... + 4268.

It is an arithmetic number, because the mean of its divisors is an integer number (440268).

Almost surely, 2^3143261 is an apocalyptic number.

It is an amenable number.

3143261 is a deficient number, since it is larger than the sum of its proper divisors (378883).

3143261 is a wasteful number, since it uses less digits than its factorization.

3143261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7771.

The product of its digits is 432, while the sum is 20.

The square root of 3143261 is about 1772.9244202729. The cubic root of 3143261 is about 146.4851099420.

Adding to 3143261 its reverse (1623413), we get a palindrome (4766674).

The spelling of 3143261 in words is "three million, one hundred forty-three thousand, two hundred sixty-one".