230647521 has 8 divisors (see below), whose sum is σ = 331186240. Its totient is φ = 141936912.

The previous prime is 230647489. The next prime is 230647523. The reversal of 230647521 is 125746032.

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

It is not a de Polignac number, because 230647521 - 2⁵ = 230647489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230647523) 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, 2956981 + ... + 2957058.

It is an arithmetic number, because the mean of its divisors is an integer number (41398280).

Almost surely, 2^230647521 is an apocalyptic number.

It is an amenable number.

230647521 is a deficient number, since it is larger than the sum of its proper divisors (100538719).

230647521 is a wasteful number, since it uses less digits than its factorization.

230647521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5914055.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 230647521 is about 15187.0840189946. The cubic root of 230647521 is about 613.2670016942.

The spelling of 230647521 in words is "two hundred thirty million, six hundred forty-seven thousand, five hundred twenty-one".