245144285 has 4 divisors (see below), whose sum is σ = 294173148. Its totient is φ = 196115424.

The previous prime is 245144257. The next prime is 245144303. The reversal of 245144285 is 582441542.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30492484 + 214651801 = 5522^2 + 14651^2 .

It is a cyclic number.

It is not a de Polignac number, because 245144285 - 2²² = 240949981 is a prime.

It is a super-2 number, since 2×245144285² = 120191440936322450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24514424 + ... + 24514433.

It is an arithmetic number, because the mean of its divisors is an integer number (73543287).

Almost surely, 2^245144285 is an apocalyptic number.

It is an amenable number.

245144285 is a deficient number, since it is larger than the sum of its proper divisors (49028863).

245144285 is an equidigital number, since it uses as much as digits as its factorization.

245144285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49028862.

The product of its digits is 51200, while the sum is 35.

The square root of 245144285 is about 15657.0841793739. The cubic root of 245144285 is about 625.8552855780.

The spelling of 245144285 in words is "two hundred forty-five million, one hundred forty-four thousand, two hundred eighty-five".