243148502 has 12 divisors (see below), whose sum is σ = 381271380. Its totient is φ = 116287908.

The previous prime is 243148463. The next prime is 243148513. The reversal of 243148502 is 205841342.

It is a happy number.

243148502 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 113852 + ... + 115967.

It is an arithmetic number, because the mean of its divisors is an integer number (31772615).

Almost surely, 2^243148502 is an apocalyptic number.

243148502 is a deficient number, since it is larger than the sum of its proper divisors (138122878).

243148502 is a wasteful number, since it uses less digits than its factorization.

243148502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229867 (or 229844 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 243148502 is about 15593.2197444915. The cubic root of 243148502 is about 624.1522389752.

Adding to 243148502 its reverse (205841342), we get a palindrome (448989844).

The spelling of 243148502 in words is "two hundred forty-three million, one hundred forty-eight thousand, five hundred two".