3145969 has 4 divisors (see below), whose sum is σ = 3331044. Its totient is φ = 2960896.

The previous prime is 3145943. The next prime is 3145981. The reversal of 3145969 is 9695413.

3145969 is nontrivially palindromic in base 12.

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 1677025 + 1468944 = 1295^2 + 1212^2 .

It is a cyclic number.

It is not a de Polignac number, because 3145969 - 2⁷ = 3145841 is a prime.

It is a super-2 number, since 2×3145969² = 19794241897922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3145169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92512 + ... + 92545.

It is an arithmetic number, because the mean of its divisors is an integer number (832761).

Almost surely, 2^3145969 is an apocalyptic number.

It is an amenable number.

3145969 is a deficient number, since it is larger than the sum of its proper divisors (185075).

3145969 is a wasteful number, since it uses less digits than its factorization.

3145969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185074.

The product of its digits is 29160, while the sum is 37.

The square root of 3145969 is about 1773.6879657933. The cubic root of 3145969 is about 146.5271647608.

It can be divided in two parts, 3145 and 969, that added together give a palindrome (4114).

The spelling of 3145969 in words is "three million, one hundred forty-five thousand, nine hundred sixty-nine".