242617571 has 6 divisors (see below), whose sum is σ = 282228660. Its totient is φ = 207957876.

The previous prime is 242617511. The next prime is 242617577. The reversal of 242617571 is 175716242.

It is a de Polignac number, because none of the positive numbers 2^k-242617571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242617577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2475641 + ... + 2475738.

It is an arithmetic number, because the mean of its divisors is an integer number (47038110).

Almost surely, 2^242617571 is an apocalyptic number.

242617571 is a deficient number, since it is larger than the sum of its proper divisors (39611089).

242617571 is an equidigital number, since it uses as much as digits as its factorization.

242617571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4951393 (or 4951386 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 242617571 is about 15576.1860222585. The cubic root of 242617571 is about 623.6976152086.

The spelling of 242617571 in words is "two hundred forty-two million, six hundred seventeen thousand, five hundred seventy-one".