243670054 has 4 divisors (see below), whose sum is σ = 365505084. Its totient is φ = 121835026.

The previous prime is 243670033. The next prime is 243670057. The reversal of 243670054 is 450076342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450076342 = 2 ⋅225038171.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 243669998 and 243670025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243670057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60917512 + ... + 60917515.

It is an arithmetic number, because the mean of its divisors is an integer number (91376271).

Almost surely, 2^243670054 is an apocalyptic number.

243670054 is a deficient number, since it is larger than the sum of its proper divisors (121835030).

243670054 is a wasteful number, since it uses less digits than its factorization.

243670054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121835029.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 243670054 is about 15609.9344649489. The cubic root of 243670054 is about 624.5981878105.

The spelling of 243670054 in words is "two hundred forty-three million, six hundred seventy thousand, fifty-four".