405033121 has 2 divisors, whose sum is σ = 405033122. Its totient is φ = 405033120.

The previous prime is 405033091. The next prime is 405033163. The reversal of 405033121 is 121330504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213598225 + 191434896 = 14615^2 + 13836^2 .

It is a cyclic number.

It is not a de Polignac number, because 405033121 - 2⁷ = 405032993 is a prime.

It is not a weakly prime, because it can be changed into another prime (405063121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202516560 + 202516561.

It is an arithmetic number, because the mean of its divisors is an integer number (202516561).

Almost surely, 2^405033121 is an apocalyptic number.

It is an amenable number.

405033121 is a deficient number, since it is larger than the sum of its proper divisors (1).

405033121 is an equidigital number, since it uses as much as digits as its factorization.

405033121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 405033121 is about 20125.4346785355. The cubic root of 405033121 is about 739.8837904926.

Adding to 405033121 its reverse (121330504), we get a palindrome (526363625).

The spelling of 405033121 in words is "four hundred five million, thirty-three thousand, one hundred twenty-one".