242023571 has 4 divisors (see below), whose sum is σ = 242055000. Its totient is φ = 241992144.

The previous prime is 242023553. The next prime is 242023583. The reversal of 242023571 is 175320242.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 175320242 = 2 ⋅87660121.

It is a cyclic number.

It is not a de Polignac number, because 242023571 - 2¹⁴ = 242007187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242023571.

It is not an unprimeable number, because it can be changed into a prime (242023591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4535 + ... + 22463.

It is an arithmetic number, because the mean of its divisors is an integer number (60513750).

Almost surely, 2^242023571 is an apocalyptic number.

242023571 is a deficient number, since it is larger than the sum of its proper divisors (31429).

242023571 is a wasteful number, since it uses less digits than its factorization.

242023571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31428.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 242023571 is about 15557.1067682908. The cubic root of 242023571 is about 623.1882001385.

The spelling of 242023571 in words is "two hundred forty-two million, twenty-three thousand, five hundred seventy-one".