245214173 has 4 divisors (see below), whose sum is σ = 245246268. Its totient is φ = 245182080.

The previous prime is 245214149. The next prime is 245214187. The reversal of 245214173 is 371412542.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 371412542 = 2 ⋅185706271.

It can be written as a sum of positive squares in 2 ways, for example, as 209728324 + 35485849 = 14482^2 + 5957^2 .

It is a cyclic number.

It is not a de Polignac number, because 245214173 - 2¹⁶ = 245148637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245214113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2765 + ... + 22317.

It is an arithmetic number, because the mean of its divisors is an integer number (61311567).

Almost surely, 2^245214173 is an apocalyptic number.

It is an amenable number.

245214173 is a deficient number, since it is larger than the sum of its proper divisors (32095).

245214173 is a wasteful number, since it uses less digits than its factorization.

245214173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32094.

The product of its digits is 6720, while the sum is 29.

The square root of 245214173 is about 15659.3158535103. The cubic root of 245214173 is about 625.9147547980.

The spelling of 245214173 in words is "two hundred forty-five million, two hundred fourteen thousand, one hundred seventy-three".