243233146 has 16 divisors (see below), whose sum is σ = 394345224. Its totient is φ = 111852864.

The previous prime is 243233143. The next prime is 243233147. The reversal of 243233146 is 641332342.

It can be written as a sum of positive squares in 4 ways, for example, as 137945025 + 105288121 = 11745^2 + 10261^2 .

It is not an unprimeable number, because it can be changed into a prime (243233141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9685 + ... + 24088.

Almost surely, 2^243233146 is an apocalyptic number.

243233146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

243233146 is a deficient number, since it is larger than the sum of its proper divisors (151112078).

243233146 is a wasteful number, since it uses less digits than its factorization.

243233146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34065.

The product of its digits is 10368, while the sum is 28.

The square root of 243233146 is about 15595.9336366888. The cubic root of 243233146 is about 624.2246564656.

Adding to 243233146 its reverse (641332342), we get a palindrome (884565488).

The spelling of 243233146 in words is "two hundred forty-three million, two hundred thirty-three thousand, one hundred forty-six".