405115027 has 2 divisors, whose sum is σ = 405115028. Its totient is φ = 405115026.

The previous prime is 405115019. The next prime is 405115069. The reversal of 405115027 is 720511504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405115027 - 2³ = 405115019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405114992 and 405115010.

It is not a weakly prime, because it can be changed into another prime (405115097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202557513 + 202557514.

It is an arithmetic number, because the mean of its divisors is an integer number (202557514).

Almost surely, 2^405115027 is an apocalyptic number.

405115027 is a deficient number, since it is larger than the sum of its proper divisors (1).

405115027 is an equidigital number, since it uses as much as digits as its factorization.

405115027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 405115027 is about 20127.4694633975. The cubic root of 405115027 is about 739.9336603544.

The spelling of 405115027 in words is "four hundred five million, one hundred fifteen thousand, twenty-seven".