232220545 has 8 divisors (see below), whose sum is σ = 288273960. Its totient is φ = 179370240.

The previous prime is 232220543. The next prime is 232220551. The reversal of 232220545 is 545022232.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 95961616 + 136258929 = 9796^2 + 11673^2 .

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

It is not a de Polignac number, because 232220545 - 2¹ = 232220543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (232220543) 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, 800616 + ... + 800905.

It is an arithmetic number, because the mean of its divisors is an integer number (36034245).

Almost surely, 2^232220545 is an apocalyptic number.

It is an amenable number.

232220545 is a deficient number, since it is larger than the sum of its proper divisors (56053415).

232220545 is a wasteful number, since it uses less digits than its factorization.

232220545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601555.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 232220545 is about 15238.7842362834. The cubic root of 232220545 is about 614.6580115504.

Adding to 232220545 its reverse (545022232), we get a palindrome (777242777).

The spelling of 232220545 in words is "two hundred thirty-two million, two hundred twenty thousand, five hundred forty-five".