3145869 has 12 divisors (see below), whose sum is σ = 4560192. Its totient is φ = 2089800.

The previous prime is 3145841. The next prime is 3145873. The reversal of 3145869 is 9685413.

It is not a de Polignac number, because 3145869 - 2⁷ = 3145741 is a prime.

It is a super-2 number, since 2×3145869² = 19792983530322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145819) 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, 3474 + ... + 4284.

It is an arithmetic number, because the mean of its divisors is an integer number (380016).

Almost surely, 2^3145869 is an apocalyptic number.

It is an amenable number.

3145869 is a deficient number, since it is larger than the sum of its proper divisors (1414323).

3145869 is a wasteful number, since it uses less digits than its factorization.

3145869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248 (or 1245 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 3145869 is about 1773.6597757180. The cubic root of 3145869 is about 146.5256122056.

The spelling of 3145869 in words is "three million, one hundred forty-five thousand, eight hundred sixty-nine".