242041531 has 4 divisors (see below), whose sum is σ = 248583232. Its totient is φ = 235499832.

The previous prime is 242041523. The next prime is 242041537. The reversal of 242041531 is 135140242.

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

It is a cyclic number.

It is not a de Polignac number, because 242041531 - 2³ = 242041523 is a prime.

It is a super-2 number, since 2×242041531² = 117168205457647922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242041537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3270795 + ... + 3270868.

It is an arithmetic number, because the mean of its divisors is an integer number (62145808).

Almost surely, 2^242041531 is an apocalyptic number.

242041531 is a deficient number, since it is larger than the sum of its proper divisors (6541701).

242041531 is an equidigital number, since it uses as much as digits as its factorization.

242041531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6541700.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 242041531 is about 15557.6839857352. The cubic root of 242041531 is about 623.2036148674.

Adding to 242041531 its reverse (135140242), we get a palindrome (377181773).

The spelling of 242041531 in words is "two hundred forty-two million, forty-one thousand, five hundred thirty-one".