3133145 has 4 divisors (see below), whose sum is σ = 3759780. Its totient is φ = 2506512.

The previous prime is 3133111. The next prime is 3133153. The reversal of 3133145 is 5413313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2155024 + 978121 = 1468^2 + 989^2 .

It is a cyclic number.

It is not a de Polignac number, because 3133145 - 2¹⁰ = 3132121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313310 + ... + 313319.

It is an arithmetic number, because the mean of its divisors is an integer number (939945).

Almost surely, 2^3133145 is an apocalyptic number.

It is an amenable number.

3133145 is a deficient number, since it is larger than the sum of its proper divisors (626635).

3133145 is an equidigital number, since it uses as much as digits as its factorization.

3133145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626634.

The product of its digits is 540, while the sum is 20.

The square root of 3133145 is about 1770.0692076865. The cubic root of 3133145 is about 146.3277960463.

Adding to 3133145 its reverse (5413313), we get a palindrome (8546458).

The spelling of 3133145 in words is "three million, one hundred thirty-three thousand, one hundred forty-five".