245734500205 has 4 divisors (see below), whose sum is σ = 294881400252. Its totient is φ = 196587600160.

The previous prime is 245734500199. The next prime is 245734500239. The reversal of 245734500205 is 502005437542.

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 51618476809 + 194116023396 = 227197^2 + 440586^2 .

It is not a de Polignac number, because 245734500205 - 2⁵ = 245734500173 is a prime.

It is a super-2 number, since 2×245734500205² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24573450016 + ... + 24573450025.

It is an arithmetic number, because the mean of its divisors is an integer number (73720350063).

Almost surely, 2^245734500205 is an apocalyptic number.

It is an amenable number.

245734500205 is a deficient number, since it is larger than the sum of its proper divisors (49146900047).

245734500205 is an equidigital number, since it uses as much as digits as its factorization.

245734500205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49146900046.

The product of its (nonzero) digits is 168000, while the sum is 37.

Adding to 245734500205 its reverse (502005437542), we get a palindrome (747739937747).

The spelling of 245734500205 in words is "two hundred forty-five billion, seven hundred thirty-four million, five hundred thousand, two hundred five".