1600142221 has 16 divisors (see below), whose sum is σ = 1759131648. Its totient is φ = 1448928000.

The previous prime is 1600142207. The next prime is 1600142227. The reversal of 1600142221 is 1222410061.

It is a cyclic number.

It is not a de Polignac number, because 1600142221 - 2⁵ = 1600142189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600142227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82396 + ... + 99946.

It is an arithmetic number, because the mean of its divisors is an integer number (109945728).

Almost surely, 2^1600142221 is an apocalyptic number.

It is an amenable number.

1600142221 is a deficient number, since it is larger than the sum of its proper divisors (158989427).

1600142221 is a wasteful number, since it uses less digits than its factorization.

1600142221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17772.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1600142221 is about 40001.7777229963. Note that the first 4 decimals coincide. The cubic root of 1600142221 is about 1169.6417489856.

Adding to 1600142221 its reverse (1222410061), we get a palindrome (2822552282).

The spelling of 1600142221 in words is "one billion, six hundred million, one hundred forty-two thousand, two hundred twenty-one".