1601205102 has 48 divisors (see below), whose sum is σ = 3969543552. Its totient is φ = 456950160.

The previous prime is 1601205017. The next prime is 1601205113. The reversal of 1601205102 is 2015021061.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 107277 + ... + 121287.

It is an arithmetic number, because the mean of its divisors is an integer number (82698824).

Almost surely, 2^1601205102 is an apocalyptic number.

1601205102 is an abundant number, since it is smaller than the sum of its proper divisors (2368338450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1601205102 is a wasteful number, since it uses less digits than its factorization.

1601205102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14933 (or 14930 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1601205102 is about 40015.0609396012. The cubic root of 1601205102 is about 1169.9006665613.

Adding to 1601205102 its reverse (2015021061), we get a palindrome (3616226163).

The spelling of 1601205102 in words is "one billion, six hundred one million, two hundred five thousand, one hundred two".