243532145 has 8 divisors (see below), whose sum is σ = 298456704. Its totient is φ = 190680304.

The previous prime is 243532141. The next prime is 243532151. The reversal of 243532145 is 541235342.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 243532145 - 2² = 243532141 is a prime.

It is a super-3 number, since 3×243532145³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243532141) 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, 517919 + ... + 518388.

It is an arithmetic number, because the mean of its divisors is an integer number (37307088).

Almost surely, 2^243532145 is an apocalyptic number.

It is an amenable number.

243532145 is a deficient number, since it is larger than the sum of its proper divisors (54924559).

243532145 is a wasteful number, since it uses less digits than its factorization.

243532145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036359.

The product of its digits is 14400, while the sum is 29.

The square root of 243532145 is about 15605.5164925740. The cubic root of 243532145 is about 624.4803317650.

Adding to 243532145 its reverse (541235342), we get a palindrome (784767487).

The spelling of 243532145 in words is "two hundred forty-three million, five hundred thirty-two thousand, one hundred forty-five".