1559020122 has 160 divisors (see below), whose sum is σ = 4115479104. Its totient is φ = 435801600.

The previous prime is 1559020117. The next prime is 1559020153. The reversal of 1559020122 is 2210209551.

1559020122 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1605097 + ... + 1606067.

Almost surely, 2^1559020122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1559020122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2057739552).

1559020122 is an abundant number, since it is smaller than the sum of its proper divisors (2556458982).

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

1559020122 is a wasteful number, since it uses less digits than its factorization.

1559020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1559020122 is about 39484.4288549296. The cubic root of 1559020122 is about 1159.5351194074.

Adding to 1559020122 its reverse (2210209551), we get a palindrome (3769229673).

The spelling of 1559020122 in words is "one billion, five hundred fifty-nine million, twenty thousand, one hundred twenty-two".