230020545 has 16 divisors (see below), whose sum is σ = 376592832. Its totient is φ = 119824320.

The previous prime is 230020541. The next prime is 230020561. The reversal of 230020545 is 545020032.

It is not a de Polignac number, because 230020545 - 2² = 230020541 is a prime.

It is a super-2 number, since 2×230020545² = 105818902244194050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230020541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177666 + ... + 178955.

It is an arithmetic number, because the mean of its divisors is an integer number (23537052).

Almost surely, 2^230020545 is an apocalyptic number.

It is an amenable number.

230020545 is a deficient number, since it is larger than the sum of its proper divisors (146572287).

230020545 is a wasteful number, since it uses less digits than its factorization.

230020545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356672.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 230020545 is about 15166.4282215688. The cubic root of 230020545 is about 612.7108101229.

Adding to 230020545 its reverse (545020032), we get a palindrome (775040577).

The spelling of 230020545 in words is "two hundred thirty million, twenty thousand, five hundred forty-five".