405125297 has 2 divisors, whose sum is σ = 405125298. Its totient is φ = 405125296.

The previous prime is 405125293. The next prime is 405125309. The reversal of 405125297 is 792521504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 385376161 + 19749136 = 19631^2 + 4444^2 .

It is a cyclic number.

It is not a de Polignac number, because 405125297 - 2² = 405125293 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (405125293) 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, 202562648 + 202562649.

It is an arithmetic number, because the mean of its divisors is an integer number (202562649).

Almost surely, 2^405125297 is an apocalyptic number.

It is an amenable number.

405125297 is a deficient number, since it is larger than the sum of its proper divisors (1).

405125297 is an equidigital number, since it uses as much as digits as its factorization.

405125297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 405125297 is about 20127.7245857548. The cubic root of 405125297 is about 739.9399129444.

The spelling of 405125297 in words is "four hundred five million, one hundred twenty-five thousand, two hundred ninety-seven".