243034245139 has 8 divisors (see below), whose sum is σ = 294091859808. Its totient is φ = 196061239680.

The previous prime is 243034245089. The next prime is 243034245151. The reversal of 243034245139 is 931542430342.

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 243034245139 - 2²¹ = 243032147987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243034245169) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1021152172 + ... + 1021152409.

It is an arithmetic number, because the mean of its divisors is an integer number (36761482476).

Almost surely, 2^243034245139 is an apocalyptic number.

243034245139 is a deficient number, since it is larger than the sum of its proper divisors (51057614669).

243034245139 is a wasteful number, since it uses less digits than its factorization.

243034245139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042304605.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 243034245139 in words is "two hundred forty-three billion, thirty-four million, two hundred forty-five thousand, one hundred thirty-nine".