1601491703 has 16 divisors (see below), whose sum is σ = 1936320000. Its totient is φ = 1293903072.

The previous prime is 1601491673. The next prime is 1601491711. The reversal of 1601491703 is 3071941061.

It is not a de Polignac number, because 1601491703 - 2¹⁰ = 1601490679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1601491703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601491733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3788 + ... + 56721.

It is an arithmetic number, because the mean of its divisors is an integer number (121020000).

Almost surely, 2^1601491703 is an apocalyptic number.

1601491703 is a deficient number, since it is larger than the sum of its proper divisors (334828297).

1601491703 is a wasteful number, since it uses less digits than its factorization.

1601491703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60734.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1601491703 is about 40018.6419434743. The cubic root of 1601491703 is about 1169.9704628869.

The spelling of 1601491703 in words is "one billion, six hundred one million, four hundred ninety-one thousand, seven hundred three".