3145212686 has 24 divisors (see below), whose sum is σ = 5986993176. Its totient is φ = 1225407120.

The previous prime is 3145212647. The next prime is 3145212689. The reversal of 3145212686 is 6862125413.

3145212686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145212689) 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, 1457741 + ... + 1459896.

It is an arithmetic number, because the mean of its divisors is an integer number (249458049).

Almost surely, 2^3145212686 is an apocalyptic number.

3145212686 is a deficient number, since it is larger than the sum of its proper divisors (2841780490).

3145212686 is a wasteful number, since it uses less digits than its factorization.

3145212686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917664 (or 2917657 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 3145212686 is about 56082.1958022330. The cubic root of 3145212686 is about 1465.1542175168.

The spelling of 3145212686 in words is "three billion, one hundred forty-five million, two hundred twelve thousand, six hundred eighty-six".