1641311603 has 8 divisors (see below), whose sum is σ = 1652028000. Its totient is φ = 1630620288.

The previous prime is 1641311593. The next prime is 1641311621. The reversal of 1641311603 is 3061131461.

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 1641311603 - 2⁴ = 1641311587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1641311653) by changing a digit.

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, 135275 + ... + 146907.

It is an arithmetic number, because the mean of its divisors is an integer number (206503500).

Almost surely, 2^1641311603 is an apocalyptic number.

1641311603 is a deficient number, since it is larger than the sum of its proper divisors (10716397).

1641311603 is a wasteful number, since it uses less digits than its factorization.

1641311603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12541.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1641311603 is about 40513.1040899115. The cubic root of 1641311603 is about 1179.5880020545.

The spelling of 1641311603 in words is "one billion, six hundred forty-one million, three hundred eleven thousand, six hundred three".