245031312 has 40 divisors (see below), whose sum is σ = 639535456. Its totient is φ = 80833536.

The previous prime is 245031299. The next prime is 245031331. The reversal of 245031312 is 213130542.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21658 + ... + 30969.

Almost surely, 2^245031312 is an apocalyptic number.

It is an amenable number.

245031312 is an abundant number, since it is smaller than the sum of its proper divisors (394504144).

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

245031312 is a wasteful number, since it uses less digits than its factorization.

245031312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52735 (or 52729 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 245031312 is about 15653.4760356925. The cubic root of 245031312 is about 625.7591304868.

Adding to 245031312 its reverse (213130542), we get a palindrome (458161854).

The spelling of 245031312 in words is "two hundred forty-five million, thirty-one thousand, three hundred twelve".