243515413 has 8 divisors (see below), whose sum is σ = 249258240. Its totient is φ = 237796080.

The previous prime is 243515401. The next prime is 243515417. The reversal of 243515413 is 314515342.

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 243515413 - 2¹⁷ = 243384341 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 (243515417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16048 + ... + 27286.

It is an arithmetic number, because the mean of its divisors is an integer number (31157280).

Almost surely, 2^243515413 is an apocalyptic number.

It is an amenable number.

243515413 is a deficient number, since it is larger than the sum of its proper divisors (5742827).

243515413 is a wasteful number, since it uses less digits than its factorization.

243515413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11747.

The product of its digits is 7200, while the sum is 28.

The square root of 243515413 is about 15604.9803908880. The cubic root of 243515413 is about 624.4660296911.

The spelling of 243515413 in words is "two hundred forty-three million, five hundred fifteen thousand, four hundred thirteen".