231625212 has 96 divisors (see below), whose sum is σ = 679483392. Its totient is φ = 59774976.

The previous prime is 231625201. The next prime is 231625213. The reversal of 231625212 is 212526132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231625213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49068 + ... + 53580.

It is an arithmetic number, because the mean of its divisors is an integer number (7077952).

Almost surely, 2^231625212 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 231625212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339741696).

231625212 is an abundant number, since it is smaller than the sum of its proper divisors (447858180).

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

231625212 is a wasteful number, since it uses less digits than its factorization.

231625212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4587 (or 4585 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 231625212 is about 15219.2382200950. The cubic root of 231625212 is about 614.1323053419.

The spelling of 231625212 in words is "two hundred thirty-one million, six hundred twenty-five thousand, two hundred twelve".