245212541205 has 32 divisors (see below), whose sum is σ = 409736537856. Its totient is φ = 124990593024.

The previous prime is 245212541153. The next prime is 245212541221. The reversal of 245212541205 is 502145212542.

It is not a de Polignac number, because 245212541205 - 2⁹ = 245212540693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125509 + ... + 711461.

It is an arithmetic number, because the mean of its divisors is an integer number (12804266808).

Almost surely, 2^245212541205 is an apocalyptic number.

It is an amenable number.

245212541205 is a deficient number, since it is larger than the sum of its proper divisors (164523996651).

245212541205 is a wasteful number, since it uses less digits than its factorization.

245212541205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587197.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 245212541205 its reverse (502145212542), we get a palindrome (747357753747).

The spelling of 245212541205 in words is "two hundred forty-five billion, two hundred twelve million, five hundred forty-one thousand, two hundred five".