231755212 has 12 divisors (see below), whose sum is σ = 436769536. Its totient is φ = 106963920.

The previous prime is 231755207. The next prime is 231755219. The reversal of 231755212 is 212557132.

231755212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231755219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2228364 + ... + 2228467.

Almost surely, 2^231755212 is an apocalyptic number.

It is an amenable number.

231755212 is a deficient number, since it is larger than the sum of its proper divisors (205014324).

231755212 is a wasteful number, since it uses less digits than its factorization.

231755212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4456848 (or 4456846 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 231755212 is about 15223.5085312158. The cubic root of 231755212 is about 614.2471780817.

The spelling of 231755212 in words is "two hundred thirty-one million, seven hundred fifty-five thousand, two hundred twelve".