1601206106 has 4 divisors (see below), whose sum is σ = 2401809162. Its totient is φ = 800603052.

The previous prime is 1601206027. The next prime is 1601206109. The reversal of 1601206106 is 6016021061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1559539081 + 41667025 = 39491^2 + 6455^2 .

It is not an unprimeable number, because it can be changed into a prime (1601206109) 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 as a sum of consecutive naturals, namely, 400301525 + ... + 400301528.

Almost surely, 2^1601206106 is an apocalyptic number.

1601206106 is a deficient number, since it is larger than the sum of its proper divisors (800603056).

1601206106 is an equidigital number, since it uses as much as digits as its factorization.

1601206106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800603055.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1601206106 is about 40015.0734848757. The cubic root of 1601206106 is about 1169.9009110813.

Adding to 1601206106 its reverse (6016021061), we get a palindrome (7617227167).

The spelling of 1601206106 in words is "one billion, six hundred one million, two hundred six thousand, one hundred six".