1602108109 has 4 divisors (see below), whose sum is σ = 1830980704. Its totient is φ = 1373235516.

The previous prime is 1602108107. The next prime is 1602108119. The reversal of 1602108109 is 9018012061.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 1602108109 - 2¹ = 1602108107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1602108107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114436287 + ... + 114436300.

It is an arithmetic number, because the mean of its divisors is an integer number (457745176).

Almost surely, 2^1602108109 is an apocalyptic number.

It is an amenable number.

1602108109 is a deficient number, since it is larger than the sum of its proper divisors (228872595).

1602108109 is an equidigital number, since it uses as much as digits as its factorization.

1602108109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228872594.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 1602108109 is about 40026.3426882847. The cubic root of 1602108109 is about 1170.1205488569.

The spelling of 1602108109 in words is "one billion, six hundred two million, one hundred eight thousand, one hundred nine".