3123893136 has 160 divisors (see below), whose sum is σ = 10021858560. Its totient is φ = 816463872.

The previous prime is 3123893131. The next prime is 3123893153. The reversal of 3123893136 is 6313983213.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 3123893094 and 3123893103.

It is not an unprimeable number, because it can be changed into a prime (3123893131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 490420 + ... + 496748.

It is an arithmetic number, because the mean of its divisors is an integer number (62636616).

Almost surely, 2^3123893136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3123893136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5010929280).

3123893136 is an abundant number, since it is smaller than the sum of its proper divisors (6897965424).

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

3123893136 is a wasteful number, since it uses less digits than its factorization.

3123893136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6473 (or 6467 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 3123893136 is about 55891.7984681116. The cubic root of 3123893136 is about 1461.8362359244.

The spelling of 3123893136 in words is "three billion, one hundred twenty-three million, eight hundred ninety-three thousand, one hundred thirty-six".