231200029 has 4 divisors (see below), whose sum is σ = 231429276. Its totient is φ = 230970784.

The previous prime is 231200023. The next prime is 231200089. The reversal of 231200029 is 920002132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 980100 + 230219929 = 990^2 + 15173^2 .

It is a cyclic number.

It is not a de Polignac number, because 231200029 - 2⁹ = 231199517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231199979 and 231200015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231200023) 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 3 ways as a sum of consecutive naturals, for example, 113104 + ... + 115129.

It is an arithmetic number, because the mean of its divisors is an integer number (57857319).

Almost surely, 2^231200029 is an apocalyptic number.

It is an amenable number.

231200029 is a deficient number, since it is larger than the sum of its proper divisors (229247).

231200029 is a wasteful number, since it uses less digits than its factorization.

231200029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229246.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 231200029 is about 15205.2632006158. The cubic root of 231200029 is about 613.7562976942.

The spelling of 231200029 in words is "two hundred thirty-one million, two hundred thousand, twenty-nine".