231225435 has 96 divisors (see below), whose sum is σ = 490893312. Its totient is φ = 102176640.

The previous prime is 231225427. The next prime is 231225451. The reversal of 231225435 is 534522132.

It is a happy number.

231225435 is a `hidden beast` number, since 2 + 3 + 1 + 225 + 435 = 666.

231225435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231225435 - 2³ = 231225427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 231225399 and 231225408.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 263217 + ... + 264093.

It is an arithmetic number, because the mean of its divisors is an integer number (5113472).

Almost surely, 2^231225435 is an apocalyptic number.

231225435 is an abundant number, since it is smaller than the sum of its proper divisors (259667877).

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

231225435 is an equidigital number, since it uses as much as digits as its factorization.

231225435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935 (or 923 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 231225435 is about 15206.0986120701. The cubic root of 231225435 is about 613.7787782585.

Adding to 231225435 its reverse (534522132), we get a palindrome (765747567).

The spelling of 231225435 in words is "two hundred thirty-one million, two hundred twenty-five thousand, four hundred thirty-five".