243122097 has 4 divisors (see below), whose sum is σ = 324162800. Its totient is φ = 162081396.

The previous prime is 243122059. The next prime is 243122111. The reversal of 243122097 is 790221342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 243122097 - 2⁷ = 243121969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243122017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40520347 + ... + 40520352.

It is an arithmetic number, because the mean of its divisors is an integer number (81040700).

Almost surely, 2^243122097 is an apocalyptic number.

It is an amenable number.

243122097 is a deficient number, since it is larger than the sum of its proper divisors (81040703).

243122097 is an equidigital number, since it uses as much as digits as its factorization.

243122097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81040702.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 243122097 is about 15592.3730394062. The cubic root of 243122097 is about 624.1296446398.

The spelling of 243122097 in words is "two hundred forty-three million, one hundred twenty-two thousand, ninety-seven".