1645060099 has 2 divisors, whose sum is σ = 1645060100. Its totient is φ = 1645060098.

The previous prime is 1645060049. The next prime is 1645060133. The reversal of 1645060099 is 9900605461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1645060099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1645060009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 822530049 + 822530050.

It is an arithmetic number, because the mean of its divisors is an integer number (822530050).

Almost surely, 2^1645060099 is an apocalyptic number.

1645060099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1645060099 is an equidigital number, since it uses as much as digits as its factorization.

1645060099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 1645060099 is about 40559.3404655450. The cubic root of 1645060099 is about 1180.4853167436.

The spelling of 1645060099 in words is "one billion, six hundred forty-five million, sixty thousand, ninety-nine".