245146212 has 18 divisors (see below), whose sum is σ = 619675238. Its totient is φ = 81715392.

The previous prime is 245146211. The next prime is 245146217. The reversal of 245146212 is 212641542.

245146212 is a `hidden beast` number, since 24 + 5 + 14 + 621 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 203233536 + 41912676 = 14256^2 + 6474^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (245146211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3404773 + ... + 3404844.

Almost surely, 2^245146212 is an apocalyptic number.

It is an amenable number.

245146212 is an abundant number, since it is smaller than the sum of its proper divisors (374529026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245146212 is a wasteful number, since it uses less digits than its factorization.

245146212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6809627 (or 6809622 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 245146212 is about 15657.1457168923. The cubic root of 245146212 is about 625.8569254557.

Adding to 245146212 its reverse (212641542), we get a palindrome (457787754).

The spelling of 245146212 in words is "two hundred forty-five million, one hundred forty-six thousand, two hundred twelve".