243961502 has 4 divisors (see below), whose sum is σ = 365942256. Its totient is φ = 121980750.

The previous prime is 243961481. The next prime is 243961567. The reversal of 243961502 is 205169342.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60990374 + ... + 60990377.

It is an arithmetic number, because the mean of its divisors is an integer number (91485564).

Almost surely, 2^243961502 is an apocalyptic number.

243961502 is a deficient number, since it is larger than the sum of its proper divisors (121980754).

243961502 is a wasteful number, since it uses less digits than its factorization.

243961502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121980753.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 243961502 is about 15619.2670122512. The cubic root of 243961502 is about 624.8471109763.

The spelling of 243961502 in words is "two hundred forty-three million, nine hundred sixty-one thousand, five hundred two".