3143145 has 8 divisors (see below), whose sum is σ = 5029056. Its totient is φ = 1676336.

The previous prime is 3143141. The next prime is 3143149. The reversal of 3143145 is 5413413.

It is an interprime number because it is at equal distance from previous prime (3143141) and next prime (3143149).

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

It is a cyclic number.

It is not a de Polignac number, because 3143145 - 2² = 3143141 is a prime.

3143145 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3143141) 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, 104757 + ... + 104786.

It is an arithmetic number, because the mean of its divisors is an integer number (628632).

Almost surely, 2^3143145 is an apocalyptic number.

It is an amenable number.

3143145 is a deficient number, since it is larger than the sum of its proper divisors (1885911).

3143145 is a wasteful number, since it uses less digits than its factorization.

3143145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209551.

The product of its digits is 720, while the sum is 21.

The square root of 3143145 is about 1772.8917056606. The cubic root of 3143145 is about 146.4833079407.

Adding to 3143145 its reverse (5413413), we get a palindrome (8556558).

The spelling of 3143145 in words is "three million, one hundred forty-three thousand, one hundred forty-five".