242521012 has 6 divisors (see below), whose sum is σ = 424411778. Its totient is φ = 121260504.

The previous prime is 242521009. The next prime is 242521021. The reversal of 242521012 is 210125242.

It can be written as a sum of positive squares in only one way, i.e., 229946896 + 12574116 = 15164^2 + 3546^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30315123 + ... + 30315130.

Almost surely, 2^242521012 is an apocalyptic number.

It is an amenable number.

242521012 is a deficient number, since it is larger than the sum of its proper divisors (181890766).

242521012 is a wasteful number, since it uses less digits than its factorization.

242521012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60630257 (or 60630255 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 242521012 is about 15573.0861424446. The cubic root of 242521012 is about 623.6148627394.

Adding to 242521012 its reverse (210125242), we get a palindrome (452646254).

The spelling of 242521012 in words is "two hundred forty-two million, five hundred twenty-one thousand, twelve".