401132243 has 2 divisors, whose sum is σ = 401132244. Its totient is φ = 401132242.

The previous prime is 401132203. The next prime is 401132267. The reversal of 401132243 is 342231104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401132243 is a prime.

It is a super-2 number, since 2×401132243² = 321814152748422098, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (401132203) 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, 200566121 + 200566122.

It is an arithmetic number, because the mean of its divisors is an integer number (200566122).

Almost surely, 2^401132243 is an apocalyptic number.

401132243 is a deficient number, since it is larger than the sum of its proper divisors (1).

401132243 is an equidigital number, since it uses as much as digits as its factorization.

401132243 is an odious number, because the sum of its binary digits is odd.

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

The square root of 401132243 is about 20028.2860724526. The cubic root of 401132243 is about 737.5008479546.

Adding to 401132243 its reverse (342231104), we get a palindrome (743363347).

The spelling of 401132243 in words is "four hundred one million, one hundred thirty-two thousand, two hundred forty-three".