245674243 has 4 divisors (see below), whose sum is σ = 246322840. Its totient is φ = 245025648.

The previous prime is 245674229. The next prime is 245674277. The reversal of 245674243 is 342476542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 245674243 - 2²¹ = 243577091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245674213) 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, 323730 + ... + 324487.

It is an arithmetic number, because the mean of its divisors is an integer number (61580710).

Almost surely, 2^245674243 is an apocalyptic number.

245674243 is a deficient number, since it is larger than the sum of its proper divisors (648597).

245674243 is an equidigital number, since it uses as much as digits as its factorization.

245674243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648596.

The product of its digits is 161280, while the sum is 37.

The square root of 245674243 is about 15673.9989473012. The cubic root of 245674243 is about 626.3059566230.

The spelling of 245674243 in words is "two hundred forty-five million, six hundred seventy-four thousand, two hundred forty-three".