230220451 has 4 divisors (see below), whose sum is σ = 232372152. Its totient is φ = 228068752.

The previous prime is 230220433. The next prime is 230220461. The reversal of 230220451 is 154022032.

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

It is a cyclic number.

It is not a de Polignac number, because 230220451 - 2⁹ = 230219939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230220421) 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, 1075690 + ... + 1075903.

It is an arithmetic number, because the mean of its divisors is an integer number (58093038).

Almost surely, 2^230220451 is an apocalyptic number.

230220451 is a deficient number, since it is larger than the sum of its proper divisors (2151701).

230220451 is a wasteful number, since it uses less digits than its factorization.

230220451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151700.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 230220451 is about 15173.0172015984. The cubic root of 230220451 is about 612.8882567381. Note that the first 3 decimals are identical.

Adding to 230220451 its reverse (154022032), we get a palindrome (384242483).

The spelling of 230220451 in words is "two hundred thirty million, two hundred twenty thousand, four hundred fifty-one".