405011 has 2 divisors, whose sum is σ = 405012. Its totient is φ = 405010.

The previous prime is 405001. The next prime is 405029. The reversal of 405011 is 110504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405011 - 2¹⁸ = 142867 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 404983 and 405001.

It is not a weakly prime, because it can be changed into another prime (405001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202505 + 202506.

It is an arithmetic number, because the mean of its divisors is an integer number (202506).

2⁴⁰⁵⁰¹¹ is an apocalyptic number.

405011 is a deficient number, since it is larger than the sum of its proper divisors (1).

405011 is an equidigital number, since it uses as much as digits as its factorization.

405011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 405011 is about 636.4047454254. The cubic root of 405011 is about 73.9870320592.

Adding to 405011 its reverse (110504), we get a palindrome (515515).

The spelling of 405011 in words is "four hundred five thousand, eleven".