242146281 has 32 divisors (see below), whose sum is σ = 355477248. Its totient is φ = 145716480.

The previous prime is 242146273. The next prime is 242146291. The reversal of 242146281 is 182641242.

It is not a de Polignac number, because 242146281 - 2³ = 242146273 is a prime.

It is a super-2 number, since 2×242146281² = 117269642804261922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242146211) 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 31 ways as a sum of consecutive naturals, for example, 434455 + ... + 435011.

It is an arithmetic number, because the mean of its divisors is an integer number (11108664).

Almost surely, 2^242146281 is an apocalyptic number.

It is an amenable number.

242146281 is a deficient number, since it is larger than the sum of its proper divisors (113330967).

242146281 is a wasteful number, since it uses less digits than its factorization.

242146281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801.

The product of its digits is 6144, while the sum is 30.

The square root of 242146281 is about 15561.0501252326. The cubic root of 242146281 is about 623.2935046250.

The spelling of 242146281 in words is "two hundred forty-two million, one hundred forty-six thousand, two hundred eighty-one".