234243545 has 4 divisors (see below), whose sum is σ = 281092260. Its totient is φ = 187394832.

The previous prime is 234243539. The next prime is 234243547. The reversal of 234243545 is 545342432.

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

It can be written as a sum of positive squares in 2 ways, for example, as 174583369 + 59660176 = 13213^2 + 7724^2 .

It is a cyclic number.

It is not a de Polignac number, because 234243545 - 2⁶ = 234243481 is a prime.

It is a super-4 number, since 4×234243545⁴ (a number of 35 digits) contains 4444 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (234243547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23424350 + ... + 23424359.

It is an arithmetic number, because the mean of its divisors is an integer number (70273065).

Almost surely, 2^234243545 is an apocalyptic number.

It is an amenable number.

234243545 is a deficient number, since it is larger than the sum of its proper divisors (46848715).

234243545 is an equidigital number, since it uses as much as digits as its factorization.

234243545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46848714.

The product of its digits is 57600, while the sum is 32.

The square root of 234243545 is about 15305.0169879030. The cubic root of 234243545 is about 616.4377273690.

Adding to 234243545 its reverse (545342432), we get a palindrome (779585977).

The spelling of 234243545 in words is "two hundred thirty-four million, two hundred forty-three thousand, five hundred forty-five".