242133544 has 8 divisors (see below), whose sum is σ = 454000410. Its totient is φ = 121066768.

The previous prime is 242133527. The next prime is 242133547. The reversal of 242133544 is 445331242.

It is a happy number.

242133544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 141372100 + 100761444 = 11890^2 + 10038^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (242133547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15133339 + ... + 15133354.

Almost surely, 2^242133544 is an apocalyptic number.

It is an amenable number.

242133544 is a deficient number, since it is larger than the sum of its proper divisors (211866866).

242133544 is a wasteful number, since it uses less digits than its factorization.

242133544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30266699 (or 30266695 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 242133544 is about 15560.6408608386. The cubic root of 242133544 is about 623.2825759300.

Adding to 242133544 its reverse (445331242), we get a palindrome (687464786).

The spelling of 242133544 in words is "two hundred forty-two million, one hundred thirty-three thousand, five hundred forty-four".