243089077 has 8 divisors (see below), whose sum is σ = 303072192. Its totient is φ = 189420000.

The previous prime is 243089039. The next prime is 243089089. The reversal of 243089077 is 770980342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-243089077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243089377) 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, 1578424 + ... + 1578577.

It is an arithmetic number, because the mean of its divisors is an integer number (37884024).

Almost surely, 2^243089077 is an apocalyptic number.

It is an amenable number.

243089077 is a deficient number, since it is larger than the sum of its proper divisors (59983115).

243089077 is a wasteful number, since it uses less digits than its factorization.

243089077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157019.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 243089077 is about 15591.3141524376. The cubic root of 243089077 is about 624.1013876526.

The spelling of 243089077 in words is "two hundred forty-three million, eighty-nine thousand, seventy-seven".