245166223 has 4 divisors (see below), whose sum is σ = 255825648. Its totient is φ = 234506800.

The previous prime is 245166191. The next prime is 245166277. The reversal of 245166223 is 322661542.

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 245166223 - 2⁵ = 245166191 is a prime.

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 Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245166293) 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, 5329678 + ... + 5329723.

It is an arithmetic number, because the mean of its divisors is an integer number (63956412).

Almost surely, 2^245166223 is an apocalyptic number.

245166223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

245166223 is a deficient number, since it is larger than the sum of its proper divisors (10659425).

245166223 is a wasteful number, since it uses less digits than its factorization.

245166223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10659424.

The product of its digits is 17280, while the sum is 31.

The square root of 245166223 is about 15657.7847411439. The cubic root of 245166223 is about 625.8739543165.

The spelling of 245166223 in words is "two hundred forty-five million, one hundred sixty-six thousand, two hundred twenty-three".