231948612 has 144 divisors (see below), whose sum is σ = 734348160. Its totient is φ = 60189696.

The previous prime is 231948611. The next prime is 231948643. The reversal of 231948612 is 216849132.

231948612 is a `hidden beast` number, since 2 + 31 + 9 + 4 + 8 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (231948611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123303 + ... + 125169.

It is an arithmetic number, because the mean of its divisors is an integer number (5099640).

Almost surely, 2^231948612 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 231948612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367174080).

231948612 is an abundant number, since it is smaller than the sum of its proper divisors (502399548).

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

231948612 is a wasteful number, since it uses less digits than its factorization.

231948612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930 (or 1925 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 231948612 is about 15229.8592245628. The cubic root of 231948612 is about 614.4179939086.

The spelling of 231948612 in words is "two hundred thirty-one million, nine hundred forty-eight thousand, six hundred twelve".