243072083 has 4 divisors (see below), whose sum is σ = 245803320. Its totient is φ = 240340848.

The previous prime is 243072061. The next prime is 243072101. The reversal of 243072083 is 380270342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 380270342 = 2 ⋅190135171.

It is a cyclic number.

It is not a de Polignac number, because 243072083 - 2¹² = 243067987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243072013) 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, 1365485 + ... + 1365662.

It is an arithmetic number, because the mean of its divisors is an integer number (61450830).

Almost surely, 2^243072083 is an apocalyptic number.

243072083 is a deficient number, since it is larger than the sum of its proper divisors (2731237).

243072083 is an equidigital number, since it uses as much as digits as its factorization.

243072083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731236.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 243072083 is about 15590.7691599869. The cubic root of 243072083 is about 624.0868439768.

The spelling of 243072083 in words is "two hundred forty-three million, seventy-two thousand, eighty-three".