242512306 has 4 divisors (see below), whose sum is σ = 363768462. Its totient is φ = 121256152.

The previous prime is 242512301. The next prime is 242512313. The reversal of 242512306 is 603215242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 127486681 + 115025625 = 11291^2 + 10725^2 .

It is a super-2 number, since 2×242512306² = 117624437122875272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242512301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60628075 + ... + 60628078.

Almost surely, 2^242512306 is an apocalyptic number.

242512306 is a deficient number, since it is larger than the sum of its proper divisors (121256156).

242512306 is a wasteful number, since it uses less digits than its factorization.

242512306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121256155.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 242512306 is about 15572.8066192321. The cubic root of 242512306 is about 623.6074004912.

Adding to 242512306 its reverse (603215242), we get a palindrome (845727548).

The spelling of 242512306 in words is "two hundred forty-two million, five hundred twelve thousand, three hundred six".