231200641 has 4 divisors (see below), whose sum is σ = 264229312. Its totient is φ = 198171972.

The previous prime is 231200621. The next prime is 231200647. The reversal of 231200641 is 146002132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231200641 - 2⁷ = 231200513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231200647) 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, 16514325 + ... + 16514338.

It is an arithmetic number, because the mean of its divisors is an integer number (66057328).

Almost surely, 2^231200641 is an apocalyptic number.

It is an amenable number.

231200641 is a deficient number, since it is larger than the sum of its proper divisors (33028671).

231200641 is an equidigital number, since it uses as much as digits as its factorization.

231200641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33028670.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 231200641 is about 15205.2833252130. The cubic root of 231200641 is about 613.7568392434.

Adding to 231200641 its reverse (146002132), we get a palindrome (377202773).

The spelling of 231200641 in words is "two hundred thirty-one million, two hundred thousand, six hundred forty-one".