1601842089 has 4 divisors (see below), whose sum is σ = 2135789456. Its totient is φ = 1067894724.

The previous prime is 1601842069. The next prime is 1601842093. The reversal of 1601842089 is 9802481061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1601842089 - 2¹³ = 1601833897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1601842019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266973679 + ... + 266973684.

It is an arithmetic number, because the mean of its divisors is an integer number (533947364).

Almost surely, 2^1601842089 is an apocalyptic number.

It is an amenable number.

1601842089 is a deficient number, since it is larger than the sum of its proper divisors (533947367).

1601842089 is an equidigital number, since it uses as much as digits as its factorization.

1601842089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533947366.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 1601842089 is about 40023.0194887892. The cubic root of 1601842089 is about 1170.0557815468.

The spelling of 1601842089 in words is "one billion, six hundred one million, eight hundred forty-two thousand, eighty-nine".