401302543 has 2 divisors, whose sum is σ = 401302544. Its totient is φ = 401302542.

The previous prime is 401302529. The next prime is 401302567. The reversal of 401302543 is 345203104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401302543 - 2¹³ = 401294351 is a prime.

It is a super-2 number, since 2×401302543² = 322087462036533698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401302043) 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, 200651271 + 200651272.

It is an arithmetic number, because the mean of its divisors is an integer number (200651272).

Almost surely, 2^401302543 is an apocalyptic number.

401302543 is a deficient number, since it is larger than the sum of its proper divisors (1).

401302543 is an equidigital number, since it uses as much as digits as its factorization.

401302543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 401302543 is about 20032.5371084144. The cubic root of 401302543 is about 737.6052014248.

Adding to 401302543 its reverse (345203104), we get a palindrome (746505647).

The spelling of 401302543 in words is "four hundred one million, three hundred two thousand, five hundred forty-three".