243452513 has 8 divisors (see below), whose sum is σ = 244804032. Its totient is φ = 242105296.

The previous prime is 243452509. The next prime is 243452533. The reversal of 243452513 is 315254342.

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 243452513 - 2² = 243452509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243452533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204506 + ... + 205692.

It is an arithmetic number, because the mean of its divisors is an integer number (30600504).

Almost surely, 2^243452513 is an apocalyptic number.

It is an amenable number.

243452513 is a deficient number, since it is larger than the sum of its proper divisors (1351519).

243452513 is a wasteful number, since it uses less digits than its factorization.

243452513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151.

The product of its digits is 14400, while the sum is 29.

The square root of 243452513 is about 15602.9648785095. The cubic root of 243452513 is about 624.4122585626.

The spelling of 243452513 in words is "two hundred forty-three million, four hundred fifty-two thousand, five hundred thirteen".