243414145 has 16 divisors (see below), whose sum is σ = 315664272. Its totient is φ = 179124480.

The previous prime is 243414121. The next prime is 243414151. The reversal of 243414145 is 541414342.

It can be written as a sum of positive squares in 8 ways, for example, as 4309776 + 239104369 = 2076^2 + 15463^2 .

It is not a de Polignac number, because 243414145 - 2²³ = 235025537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12655 + ... + 25435.

It is an arithmetic number, because the mean of its divisors is an integer number (19729017).

Almost surely, 2^243414145 is an apocalyptic number.

It is an amenable number.

243414145 is a deficient number, since it is larger than the sum of its proper divisors (72250127).

243414145 is a wasteful number, since it uses less digits than its factorization.

243414145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13092.

The product of its digits is 7680, while the sum is 28.

The square root of 243414145 is about 15601.7353201495. The cubic root of 243414145 is about 624.3794544811.

Adding to 243414145 its reverse (541414342), we get a palindrome (784828487).

The spelling of 243414145 in words is "two hundred forty-three million, four hundred fourteen thousand, one hundred forty-five".