405145093 has 2 divisors, whose sum is σ = 405145094. Its totient is φ = 405145092.

The previous prime is 405145073. The next prime is 405145127. The reversal of 405145093 is 390541504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 301960129 + 103184964 = 17377^2 + 10158^2 .

It is a cyclic number.

It is not a de Polignac number, because 405145093 - 2⁵ = 405145061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405145063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202572546 + 202572547.

It is an arithmetic number, because the mean of its divisors is an integer number (202572547).

Almost surely, 2^405145093 is an apocalyptic number.

It is an amenable number.

405145093 is a deficient number, since it is larger than the sum of its proper divisors (1).

405145093 is an equidigital number, since it uses as much as digits as its factorization.

405145093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 405145093 is about 20128.2163392587. The cubic root of 405145093 is about 739.9519648635.

Adding to 405145093 its reverse (390541504), we get a palindrome (795686597).

The spelling of 405145093 in words is "four hundred five million, one hundred forty-five thousand, ninety-three".