243196129 has 8 divisors (see below), whose sum is σ = 267331680. Its totient is φ = 219398400.

The previous prime is 243196099. The next prime is 243196141. The reversal of 243196129 is 921691342.

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 243196129 - 2¹³ = 243187937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243196199) 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, 82944 + ... + 85825.

It is an arithmetic number, because the mean of its divisors is an integer number (33416460).

Almost surely, 2^243196129 is an apocalyptic number.

It is an amenable number.

243196129 is a deficient number, since it is larger than the sum of its proper divisors (24135551).

243196129 is a wasteful number, since it uses less digits than its factorization.

243196129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168911.

The product of its digits is 23328, while the sum is 37.

The square root of 243196129 is about 15594.7468398817. The cubic root of 243196129 is about 624.1929885004.

The spelling of 243196129 in words is "two hundred forty-three million, one hundred ninety-six thousand, one hundred twenty-nine".