405114397 has 2 divisors, whose sum is σ = 405114398. Its totient is φ = 405114396.

The previous prime is 405114337. The next prime is 405114401. The reversal of 405114397 is 793411504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 359064601 + 46049796 = 18949^2 + 6786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405114397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405114337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202557198 + 202557199.

It is an arithmetic number, because the mean of its divisors is an integer number (202557199).

Almost surely, 2^405114397 is an apocalyptic number.

It is an amenable number.

405114397 is a deficient number, since it is larger than the sum of its proper divisors (1).

405114397 is an equidigital number, since it uses as much as digits as its factorization.

405114397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 405114397 is about 20127.4538131379. The cubic root of 405114397 is about 739.9332767938.

The spelling of 405114397 in words is "four hundred five million, one hundred fourteen thousand, three hundred ninety-seven".