242131433 has 2 divisors, whose sum is σ = 242131434. Its totient is φ = 242131432.

The previous prime is 242131423. The next prime is 242131453. The reversal of 242131433 is 334131242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162511504 + 79619929 = 12748^2 + 8923^2 .

It is a cyclic number.

It is not a de Polignac number, because 242131433 - 2⁸ = 242131177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242131399 and 242131408.

It is not a weakly prime, because it can be changed into another prime (242131403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121065716 + 121065717.

It is an arithmetic number, because the mean of its divisors is an integer number (121065717).

Almost surely, 2^242131433 is an apocalyptic number.

It is an amenable number.

242131433 is a deficient number, since it is larger than the sum of its proper divisors (1).

242131433 is an equidigital number, since it uses as much as digits as its factorization.

242131433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 242131433 is about 15560.5730292943. The cubic root of 242131433 is about 623.2807645971.

Adding to 242131433 its reverse (334131242), we get a palindrome (576262675).

The spelling of 242131433 in words is "two hundred forty-two million, one hundred thirty-one thousand, four hundred thirty-three".