1355542122 has 64 divisors (see below), whose sum is σ = 3136942080. Its totient is φ = 386443200.

The previous prime is 1355542093. The next prime is 1355542129. The reversal of 1355542122 is 2212455531.

It is a self number, because there is not a number n which added to its sum of digits gives 1355542122.

It is not an unprimeable number, because it can be changed into a prime (1355542129) 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 31 ways as a sum of consecutive naturals, for example, 85279 + ... + 99917.

It is an arithmetic number, because the mean of its divisors is an integer number (49014720).

Almost surely, 2^1355542122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1355542122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1568471040).

1355542122 is an abundant number, since it is smaller than the sum of its proper divisors (1781399958).

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

1355542122 is a wasteful number, since it uses less digits than its factorization.

1355542122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14739.

The product of its digits is 12000, while the sum is 30.

The square root of 1355542122 is about 36817.6876242928. The cubic root of 1355542122 is about 1106.7197811437.

Adding to 1355542122 its reverse (2212455531), we get a palindrome (3567997653).

The spelling of 1355542122 in words is "one billion, three hundred fifty-five million, five hundred forty-two thousand, one hundred twenty-two".