242133401 has 2 divisors, whose sum is σ = 242133402. Its totient is φ = 242133400.

The previous prime is 242133373. The next prime is 242133421. The reversal of 242133401 is 104331242.

It is an a-pointer prime, because the next prime (242133421) can be obtained adding 242133401 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158886025 + 83247376 = 12605^2 + 9124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242133401 is a prime.

It is not a weakly prime, because it can be changed into another prime (242133421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121066700 + 121066701.

It is an arithmetic number, because the mean of its divisors is an integer number (121066701).

Almost surely, 2^242133401 is an apocalyptic number.

It is an amenable number.

242133401 is a deficient number, since it is larger than the sum of its proper divisors (1).

242133401 is an equidigital number, since it uses as much as digits as its factorization.

242133401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 242133401 is about 15560.6362659115. The cubic root of 242133401 is about 623.2824532299.

Adding to 242133401 its reverse (104331242), we get a palindrome (346464643).

The spelling of 242133401 in words is "two hundred forty-two million, one hundred thirty-three thousand, four hundred one".