242549533 has 4 divisors (see below), whose sum is σ = 250913340. Its totient is φ = 234185728.

The previous prime is 242549519. The next prime is 242549537. The reversal of 242549533 is 335945242.

242549533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52606009 + 189943524 = 7253^2 + 13782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242549533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242549492 and 242549501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242549537) 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, 4181860 + ... + 4181917.

It is an arithmetic number, because the mean of its divisors is an integer number (62728335).

Almost surely, 2^242549533 is an apocalyptic number.

It is an amenable number.

242549533 is a deficient number, since it is larger than the sum of its proper divisors (8363807).

242549533 is an equidigital number, since it uses as much as digits as its factorization.

242549533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8363806.

The product of its digits is 129600, while the sum is 37.

The square root of 242549533 is about 15574.0018299729. The cubic root of 242549533 is about 623.6393079372.

The spelling of 242549533 in words is "two hundred forty-two million, five hundred forty-nine thousand, five hundred thirty-three".