232856109 has 12 divisors (see below), whose sum is σ = 347946300. Its totient is φ = 149884224.

The previous prime is 232856101. The next prime is 232856177. The reversal of 232856109 is 901658232.

232856109 is a `hidden beast` number, since 2 + 32 + 8 + 5 + 610 + 9 = 666.

232856109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 57426084 + 175430025 = 7578^2 + 13245^2 .

It is not a de Polignac number, because 232856109 - 2³ = 232856101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232856101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 445824 + ... + 446345.

It is an arithmetic number, because the mean of its divisors is an integer number (28995525).

Almost surely, 2^232856109 is an apocalyptic number.

232856109 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

232856109 is a deficient number, since it is larger than the sum of its proper divisors (115090191).

232856109 is a wasteful number, since it uses less digits than its factorization.

232856109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892204 (or 892201 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 232856109 is about 15259.6234881468. The cubic root of 232856109 is about 615.2182528956.

The spelling of 232856109 in words is "two hundred thirty-two million, eight hundred fifty-six thousand, one hundred nine".