3142321 has 12 divisors (see below), whose sum is σ = 3937332. Its totient is φ = 2485728.

The previous prime is 3142319. The next prime is 3142333. The reversal of 3142321 is 1232413.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 705600 + 2436721 = 840^2 + 1561^2 .

It is not a de Polignac number, because 3142321 - 2¹ = 3142319 is a prime.

3142321 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3142295 and 3142304.

It is not an unprimeable number, because it can be changed into a prime (3142301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1830 + ... + 3103.

It is an arithmetic number, because the mean of its divisors is an integer number (328111).

Almost surely, 2^3142321 is an apocalyptic number.

It is an amenable number.

3142321 is a deficient number, since it is larger than the sum of its proper divisors (795011).

3142321 is a wasteful number, since it uses less digits than its factorization.

3142321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960 (or 4953 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 3142321 is about 1772.6593017272. The cubic root of 3142321 is about 146.4705062410.

Adding to 3142321 its reverse (1232413), we get a palindrome (4374734).

The spelling of 3142321 in words is "three million, one hundred forty-two thousand, three hundred twenty-one".