402133243 has 2 divisors, whose sum is σ = 402133244. Its totient is φ = 402133242.

The previous prime is 402133201. The next prime is 402133247. The reversal of 402133243 is 342331204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402133243 is a prime.

It is a super-2 number, since 2×402133243² = 323422290251394098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402133247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201066621 + 201066622.

It is an arithmetic number, because the mean of its divisors is an integer number (201066622).

Almost surely, 2^402133243 is an apocalyptic number.

402133243 is a deficient number, since it is larger than the sum of its proper divisors (1).

402133243 is an equidigital number, since it uses as much as digits as its factorization.

402133243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 402133243 is about 20053.2601588869. The cubic root of 402133243 is about 738.1138005290.

Adding to 402133243 its reverse (342331204), we get a palindrome (744464447).

The spelling of 402133243 in words is "four hundred two million, one hundred thirty-three thousand, two hundred forty-three".