1605374411 has 2 divisors, whose sum is σ = 1605374412. Its totient is φ = 1605374410.

The previous prime is 1605374371. The next prime is 1605374417. The reversal of 1605374411 is 1144735061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1605374411 - 2²² = 1601180107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1605374417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802687205 + 802687206.

It is an arithmetic number, because the mean of its divisors is an integer number (802687206).

Almost surely, 2^1605374411 is an apocalyptic number.

1605374411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1605374411 is an equidigital number, since it uses as much as digits as its factorization.

1605374411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1605374411 is about 40067.1238174142. The cubic root of 1605374411 is about 1170.9152044854.

The spelling of 1605374411 in words is "one billion, six hundred five million, three hundred seventy-four thousand, four hundred eleven".