402124241 has 2 divisors, whose sum is σ = 402124242. Its totient is φ = 402124240.

The previous prime is 402124211. The next prime is 402124243. The reversal of 402124241 is 142421204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233020225 + 169104016 = 15265^2 + 13004^2 .

It is a cyclic number.

It is not a de Polignac number, because 402124241 - 2²⁶ = 335015377 is a prime.

Together with 402124243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (402124243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201062120 + 201062121.

It is an arithmetic number, because the mean of its divisors is an integer number (201062121).

Almost surely, 2^402124241 is an apocalyptic number.

It is an amenable number.

402124241 is a deficient number, since it is larger than the sum of its proper divisors (1).

402124241 is an equidigital number, since it uses as much as digits as its factorization.

402124241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 402124241 is about 20053.0357053490. The cubic root of 402124241 is about 738.1082927774.

Adding to 402124241 its reverse (142421204), we get a palindrome (544545445).

The spelling of 402124241 in words is "four hundred two million, one hundred twenty-four thousand, two hundred forty-one".