3148689520 has 20 divisors (see below), whose sum is σ = 7320703320. Its totient is φ = 1259475776.

The previous prime is 3148689473. The next prime is 3148689547. The reversal of 3148689520 is 259868413.

3148689520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

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, 19679230 + ... + 19679389.

It is an arithmetic number, because the mean of its divisors is an integer number (366035166).

Almost surely, 2^3148689520 is an apocalyptic number.

It is an amenable number.

3148689520 is an abundant number, since it is smaller than the sum of its proper divisors (4172013800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3148689520 is a wasteful number, since it uses less digits than its factorization.

3148689520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39358632 (or 39358626 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 3148689520 is about 56113.1849033719. The cubic root of 3148689520 is about 1465.6938971920.

The spelling of 3148689520 in words is "three billion, one hundred forty-eight million, six hundred eighty-nine thousand, five hundred twenty".