230455821 has 8 divisors (see below), whose sum is σ = 308005984. Its totient is φ = 153271440.

The previous prime is 230455789. The next prime is 230455831. The reversal of 230455821 is 128554032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 230455821 - 2⁵ = 230455789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230455831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89971 + ... + 92496.

It is an arithmetic number, because the mean of its divisors is an integer number (38500748).

Almost surely, 2^230455821 is an apocalyptic number.

It is an amenable number.

230455821 is a deficient number, since it is larger than the sum of its proper divisors (77550163).

230455821 is a wasteful number, since it uses less digits than its factorization.

230455821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182891.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 230455821 is about 15180.7714230865. The cubic root of 230455821 is about 613.0970513601.

The spelling of 230455821 in words is "two hundred thirty million, four hundred fifty-five thousand, eight hundred twenty-one".