315200532242 has 18 divisors (see below), whose sum is σ = 478665901287. Its totient is φ = 155668914636.

The previous prime is 315200532217. The next prime is 315200532247. The reversal of 315200532242 is 242235002513.

It can be written as a sum of positive squares in only one way, i.e., 157600266121 + 157600266121 = 396989^2 + 396989^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=396989.

It is a super-3 number, since 3×315200532242³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315200532247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 65897783 + ... + 65902565.

Almost surely, 2^315200532242 is an apocalyptic number.

315200532242 is a deficient number, since it is larger than the sum of its proper divisors (163465369045).

315200532242 is an frugal number, since it uses more digits than its factorization.

315200532242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9734 (or 4868 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 315200532242 its reverse (242235002513), we get a palindrome (557435534755).

The spelling of 315200532242 in words is "three hundred fifteen billion, two hundred million, five hundred thirty-two thousand, two hundred forty-two".