242144451 has 16 divisors (see below), whose sum is σ = 362219520. Its totient is φ = 159860520.

The previous prime is 242144407. The next prime is 242144453. The reversal of 242144451 is 154441242.

242144451 is a `hidden beast` number, since 2 + 4 + 214 + 445 + 1 = 666.

It is not a de Polignac number, because 242144451 - 2¹³ = 242136259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (242144453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40755 + ... + 46316.

It is an arithmetic number, because the mean of its divisors is an integer number (22638720).

Almost surely, 2^242144451 is an apocalyptic number.

242144451 is a deficient number, since it is larger than the sum of its proper divisors (120075069).

242144451 is a wasteful number, since it uses less digits than its factorization.

242144451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87183 (or 87177 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 242144451 is about 15560.9913244626. The cubic root of 242144451 is about 623.2919344584.

Adding to 242144451 its reverse (154441242), we get a palindrome (396585693).

The spelling of 242144451 in words is "two hundred forty-two million, one hundred forty-four thousand, four hundred fifty-one".