1601848645 has 8 divisors (see below), whose sum is σ = 1922495256. Its totient is φ = 1281294336.

The previous prime is 1601848621. The next prime is 1601848657. The reversal of 1601848645 is 5468481061.

It can be written as a sum of positive squares in 4 ways, for example, as 378458116 + 1223390529 = 19454^2 + 34977^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1601848645 - 2⁷ = 1601848517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23749 + ... + 61381.

It is an arithmetic number, because the mean of its divisors is an integer number (240311907).

Almost surely, 2^1601848645 is an apocalyptic number.

It is an amenable number.

1601848645 is a deficient number, since it is larger than the sum of its proper divisors (320646611).

1601848645 is an equidigital number, since it uses as much as digits as its factorization.

1601848645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46151.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 1601848645 is about 40023.1013915713. The cubic root of 1601848645 is about 1170.0573778080.

The spelling of 1601848645 in words is "one billion, six hundred one million, eight hundred forty-eight thousand, six hundred forty-five".